Measuring Tools | McMaster-Carr

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22,140 Products

Measuring and Inspecting

Rulers

Horizontal, vertical, circumference, center-finding, and pica rulers

658 products

Calipers

Take inside, outside, and depth measurements with more precision than a ruler

210 products

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

345 products

Variance Indicator Hole Attachments

Fasten to variance indicators to measure inside holes and around obstructions

1 product

Variance Indicator Holders

Position and hold variance indicators in place for accurate readings

65 products

Variance Indicator Holder Bases

Thread a post into the hole to mount variance indicators

18 products

Variance Indicator Holder Fine-Adjustment Attachments

Install on Starrett variance indicator holders for precise control over positioning

1 product

Variance Indicator Lifting Cords

Lift the spindle on your variance indicator without touching the indicator

1 product

Variance Indicator Clamps

Secure and position indicators, arms, and other components on holders

61 products

Variance Indicator Caps

Cover and color-code the spindle on your variance indicator

1 product

Variance Indicator Contact Point Adapters

Convert variance indicators to work with inch-size contact points or measure hard-to-reach spots

3 products

Variance Indicator Holder Posts

Connect holder bases to clamps to hold variance indicators

5 products

Variance Indicator Backs

Replace the back on your variance indicator

21 products

Variance Indicator Depth Base Attachments

Insert the stem of your variance indicator to convert it into a depth gauge

7 products

Variance Indicator Lifting Levers

Replace the cap on your variance indicator to help lift the spindle

4 products

Variance Indicator Extension Rods

Lengthen the reach of your variance indicator

19 products

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

114 products

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

44 products

Caliper Depth Rods

Attach to your caliper to measure depth

1 product

Tape Measures

Standard, long, center-finding, and flexible tape measures

238 products

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

120 products

Staff Gauges

Typically mounted to walls and tanks for measuring the level of liquids, such as water, fuel, and oil

32 products

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

381 products

Protractors

Set bevels and measure angles with everything from pocket-size to long-arm protractors

36 products

Caliper Tips

Install on your caliper to measure hard-to-reach areas or center-to-center distances

4 products

Tap and Drill Chart/Rulers

Reference tap and drill sizes, measure in inches, and convert to decimals with one tool

1 product

Caliper Display Freeze Adapters

Hold the measurement displayed on your caliper after repositioning

1 product

Diameter Identifiers

Tighten the strap around rods, drill bits, and other small items to measure outer diameter

1 product

Inside Hole Calipers

Measure hard-to-reach areas, such as internal grooves and slots

12 products

Depth Gauges

Reach into slots, counterbores, and other holes to measure depth

60 products

Laser Measurers

Point the laser to determine the distance to objects up to hundreds of feet away

11 products

Outside Micrometers

Apply even pressure to objects to measure thickness more precisely than thickness gauges

220 products

Ring Gauges

Confirm your workpiece's outer diameter or external threads are within tolerance

854 products

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

1,022 products

Flatness Gauges

Determine if the flatness of surface plates, lapping plates, and other surfaces is within tolerance

7 products

Ring Gauge Holders

Keep ring gauges still to measure cylindrical parts or threads quickly and repeatedly

17 products

Plug Gauge Drivers

Test thread tolerance in seconds to save time during high-volume work

7 products

Plug Gauge Handles

Add both a go gauge and a no-go gauge to create a custom tool for checking hole diameters

12 products

Go/No-Go Outside Diameter Gauges

Snap on rods and shafts to check if their outside diameters are within tolerance

20 products

Height Gauges

Measure an object's height and mark workpieces for machining

49 products

Caliper Range Extenders

Expand your caliper's range to measure large items

7 products

Gauge Blocks

Confirm dies, fixtures, and other workpieces meet precise tolerances and calibrate measuring tools

738 products

Caliper Depth Base Attachments

Steady your caliper when measuring depth

5 products

Drill Point Angle Gauges

Verify drill point angles after sharpening

1 product

Radius Gauges

Check convex and concave radii of tools, patterns, and dies

12 products

Linear Scales

Measure and display the position of tools on machines, such as lathes, saws, and drill presses

40 products

Welding Gauges

Check alignment, corner dimensions, and other weld measurements

3 products

O-Ring Gauges

Identify the size of your O-ring

4 products

Metal Gauges

Press sheet metal or wire into the slots to determine their thickness or gauge size

3 products

Pipe Size Chart/Rulers

Curl around pipe to gauge its size, measure its diameter, or mark lines

3 products

Micrometer Check Gauges

Confirm your outside or depth micrometers are accurate

7 products

Angle Indicators

Align pipe and other equipment by measuring angle, level, or tilt

24 products

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

29 products

Depth Micrometers

Measure slots, counterbores, and other holes more precisely than depth gauges

46 products

V-Belt Size Gauges

Insert your V-belt and pull the slide tight to determine its trade size

1 product

Sheave Gauges

Match your pulley or V-belt to one of the leaves to determine its size or wear

2 products

Thickness Gauges

Move the thumb lever to quickly check the thickness of flat stock, pipe, or tubing

40 products

Combination Square Heads

Attach combination square blades to form a combination square

28 products

Wire, Rope, and Cord Length Measurers

Combine counters and reels to measure and wind wire, rope, cord, cable, or hose

22 products

Angle Identifiers

Place the edges against fittings, dies, and other objects to quickly verify angles up to 45°

2 products

Micrometer Heads

Mount on jigs, fixtures, and machine tools to position equipment and measure length

35 products

Measuring Wheels

Roll along surfaces to measure distance

49 products

Combination Square Blades

Connect to a combination square head to create a combination square

17 products

Map Distance Measuring Tools

Slide across maps and blueprints to measure distances

4 products

Step Gauges

Check step height, gap width, and distance between slots to make sure machine and engine parts align

5 products

Variance Indicator Contact Points

Attach to your variance indicator to make contact with the workpiece being measured

123 products

Liquid-Level Tape Measures

Lower into deep containers, such as tanks, to check the level of oil and other fluids

61 products

Inside Hole Micrometer Spacing Collars

Replace the collar on your micrometer to connect extension rods

1 product

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

126 products

Machine Tool Indicator Contact Points

Replace the contact point on your machine tool indicator

3 products

Machine Tool Indicators

Find the exact edge of a workpiece without math or guesswork to quickly align your machining setup

6 products

Drill Bit Size Gauges

Match your drill bit to one of the holes to confirm its size

5 products

Inside Hole Micrometer Handles

Screw into your micrometer head to extend its reach for measuring deep holes

1 product

Precision Measuring Tool Sets

Multiple precision measuring tools in one convenient case

18 products

Outside Micrometer Stands

Hold micrometers to free your hands when measuring

3 products

Gear Tooth Gauges

Identify your gear's pressure angle, pitch, and module

4 products

Calibration Rods

Check and set micrometers and other measuring tools

31 products

Caliper Battery Covers

Protect the battery inside your caliper

8 products

Inside/Outside Diameter Gauges

Mount your variance indicator to measure the diameter of rims, grooves, and shallow holes

2 products

SPC Receivers

Connect to a computer to receive measurements from an SPC wireless transmitter

6 products

OSHA/ANSI Safety Gauges

Confirm gaps in bench grinders and machine guards meet OSHA and ANSI safety requirements

3 products

Paper Rolls for Measuring Tool Data Processors

Replace the paper roll in your measuring tool data processor

1 product

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

70 products

Bore Gauge Heads

Swap the head on your Mitutoyo electronic bore gauge for one with a different measuring range

19 products

Height Gauge Calibrators

Ensure height gauges are accurate

11 products

Caliper Calibration Checkers

Test your caliper's accuracy

2 products

SPC Transmitters

Send data from measuring tools with SPC output to a wireless receiver

8 products

Height Gauge Scriber Clamps

Replace the scriber clamp on your height gauge

5 products

Depth Gauge Base Extensions

Increase the base width of your depth gauge to measure large holes

2 products

Measuring Tool Data Processors

Analyze and print data from measuring tools with SPC output

3 products

Coordinate Measurement Machine Probes

Take 3D measurements of workpieces on your CMM or CNC machine to inspect for quality

50 products

Micrometer Speeder Knobs

Color code micrometers by calibration date, precision, or other criteria

4 products

Squareness Gauges

Check frames and machined parts to see if they are leaning or uneven

3 products

Grind Gauges

Measure how smoothly paint, coatings, and other mixtures are blended

5 products

Pipe Size Measuring Kits

Connect to pipe and fittings to determine their size without additional measuring tools

4 products

Height Gauge Scribers

Replace the scriber on your height gauge

2 products

Feeler Gauge Holders

Clamp onto your feeler gauge to keep it in position

2 products

Gauging Pastes

Cover your tank-level ruler and change color to indicate the level of water or gasoline in your tank

2 products

Chain Wear Gauges

Check if your chain is worn out

20 products

Outside Micrometer Tips

Adapt your micrometer to measure curved and irregularly shaped objects, such as gear teeth and pipe

9 products

Variance Indicator Collets

Hold the stem of plunger-style indicators for custom mounting jobs, such as creating depth gauges

4 products

Calibration Squares

Lay horizontally or vertically on CNC machines to check the position of tools with high precision

2 products

Calibration Spheres

Test your CMM probe and stylus against a precise reference point before you start inspecting

7 products

Chamfer Gauges

Check the diameter of chamfered edges to make sure they're within tolerance

21 products

Countersink Gauges

Catch sizing errors in countersunk holes to keep fasteners from protruding and creating weak points

19 products

Micrometer Head Mounting Brackets

Mount a micrometer head to your jig or fixture to accurately position workpieces

16 products

Layout Calipers

Adjust the legs to measure an object and transfer those measurements to a tool or part

24 products

Layout Compasses

Draw circles and transfer distance measurements

27 products

Rivet Hole Locators

Mark even spacing for rivets and other fasteners before you drill

1 product

Center Finders

Line up your drill with the center of round bars and pipe

1 product

Straightedges

Draw straight lines and check the straightness of surfaces

44 products

Angle Transfers

Duplicate any angle in construction and other applications

2 products

Parallel Rules

Draw parallel lines, as well as circles, arcs, and angles

1 product

Edge Finders

Locate edges, shoulders, center points, and lines on workpieces in milling machines

17 products

Compass Point-Holding Clamps

Attach to a pipe, ruler, or beam to scribe circles and arcs too large for a compass

3 products

Drafting Curves

Use as templates for drawing curved lines

5 products

Straightedge/Protractors

Draw straight lines and measure angle, slope, and rise with one tool

2 products

Contour Gauges

Transfer contours, patterns, and shapes for jobs such as installing floor tile and pipe insulation

7 products

Center Punches

Mark center holes in metal and other material

6 products

Transfer Punches

Mark the center of an existing hole onto a separate workpiece

198 products

Center Punch/Angle Indicators

Find the center of pipe and other parts and determine setup angles on milling machines and grinders

5 products

Levels

Ensure surfaces are completely horizontal or vertical

189 products

Laser Levels

Project level references onto surfaces when installing drop ceilings, pipe, or conveyors

22 products

Leveling Rods

Use with sight levels to estimate the distance between you and a given object

5 products

Band Saw Blade Alignment Gauges

Keep band saw blades straight between guides

1 product

Shaft Alignment Kits

Confirm that shafts are aligned or measure the degree of their misalignment

9 products

Inspection Parallels

Line up workpieces for precise machining, or support them at a level height for inspecting

8 products

Inspection Setup Blocks

Line up workpieces at precise heights and angles for machining, measuring, and inspecting

2 products

Level Mounts

Strap to nonmagnetic surfaces to attach a magnetic level

2 products

Laser Directing Components

Turn or split dot lasers to point them where needed

12 products

Level Vials

Replace vials in levels or equipment

16 products

Blade Balancers

Confirm your rotary blades are balanced for smooth, vibration-free cutting

1 product

Magnifiers

Workstation, hand-held, headband, and eyeglass magnifiers

170 products

Optical Comparators

Magnify your part to check for dimensional accuracy and surface defects

19 products

Microscopes

Enlarge the view of small parts and samples for inspection and assembly

41 products

Microscope Eyepiece Cameras

Place over your microscope's eyepiece to view a live feed of extra-fine details

1 product

Multimeters

Take current, voltage, resistance, and other electrical measurements

109 products

Test Lead Tips

Adapt Fluke test leads to perform electrical tests in tight spaces

1 product

Oscilloscopes

Analyze problems with electrical equipment by graphing voltage and other electrical waveforms

1 product

Oscilloscope/Multimeters

Perform electrical tests, record data, and view a graph of electrical waveforms

4 products

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Test Lead Sensors

Adapt Fluke multimeters to take temperature readings, so you don't need a separate meter

2 products

Current Meters

Measure current without interrupting the circuit

3 products

Battery Discharge Indicators

Install on lift trucks and other electric vehicles to display battery condition

3 products

Multimeter Hangers

Free up your hands when using a Fluke multimeter

1 product

Decade Boxes

Test and troubleshoot circuits without needing to solder capacitors or replace resistors

3 products

Power Consumption Meters

Measure the amount of power your devices consume to help calculate energy costs

1 product

Battery Testers

Measure the health of rechargeable batteries, or check if it's time to replace disposable batteries

6 products

Meter Computer Connectors

Plug into a computer to receive and analyze measurements from a Fluke wireless meter

1 product

Electrical Panel Meters

See the amount of electricity used to run motors, generators, and other equipment

84 products

Voltage Detectors

Check for voltage in receptacles, cables, and electrical components

13 products

Power Consumption Data Loggers

Record data to monitor energy usage and fix intermittent problems, such as voltage spikes

4 products

Electrical Resistance Meters

Prevent damage to electronics by checking that surfaces won't discharge static electricity

4 products

Voltage Meters

Measure voltage in electrical components

7 products

Current Detectors

Check for AC current and voltage without making direct contact with wire

1 product

Insulation Testers

Measure insulation quality in motors, generators, and other electrical equipment

9 products

Electronic-Component Testers

Test, identify, and troubleshoot components such as circuit boards and diodes

4 products

Wristwatches

Display the time, date, and smart functions on your wrist and keep your hands free

2 products

Surface Finish Gauges

Compare your surface to the swatches to see if you’ve achieved the desired finish

4 products

Magnetic Field Indicators

Measure the strength of a magnetic field in gauss

12 products

Hardness Calibration Test Blocks

Confirm testers are accurate for a specific Rockwell or Brinell hardness

13 products

Surface Roughness Testers

Trace the surface of a part to calculate its roughness parameters in Ra, Rp, and Rq

8 products

Hardness Tester Indenters

Hard enough to make impressions on most metal to determine Brinell hardness

2 products

Hardness Testers

Determine the Rockwell, Brinell, or Durometer hardness of any material

38 products

Density Meters

Measure the density of liquids to check concentration; test battery fluid for a charge

48 products

Viscosity Testers

Calculate the thickness of a liquid to check for proper quality and consistency

11 products

Thermal Cameras

Detect hot spots, leaks, moisture problems, and construction defects invisible to the eye

7 products

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

13 products

Humidity Meters

Measure relative humidity without complex calculations

4 products

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

517 products

Combustion Analyzers

Measure boiler and furnace combustion efficiency

3 products

Humidity-Indicating Cards

Check humidity levels of moisture-sensitive inventory and equipment at a glance

9 products

Humidity-Indicating Plugs

Monitor humidity in sealed containers without opening them, protecting the inside from contamination

6 products

Tachometers

Measure the speed of rotating parts on machines such as shafts, gears, and belts

50 products

Inertial Measurement Units

Mount to robot arms, cranes, and vehicles to accurately track their movements

1 product

Vibration Meters

Spot-check vibration to gauge the health of your machine

8 products

Speed Guns

Point and shoot for instant speed readings in mph

2 products

Vibration Monitors

Mount to your machine to continuously monitor vibration and ensure it stays within the proper range

16 products

Position Indicators

Track components on rotating spindles or lead screws to help adjust machinery quickly and precisely

71 products

Stroboscopes

Shine a bright flashing light at moving belts and pulleys to measure speed and detect wear

23 products

Force Gauges

Test objects to see how much tension and compression force they can bear

133 products

Scales

Bench-top, hanging, floor, and conveyor scales

207 products

Color Calibrators

Calibrate your color meter to identify colors with precision

1 product

Test Weights

Place on or hang from your scale to calibrate it

216 products

Light Meters

Measure light quality and intensity

20 products

Belt Tension Gauges

Check belt tension to minimize vibration, noise, and slippage

16 products

Torque Gauge Connectors

Replace square-drive connectors on torque gauges

3 products

Gloss Meters

Measure the gloss of paint, coatings, and surfaces to ensure each product is as shiny as the last

2 products

Force Gauge Grips

Pair with force gauges to test wire, pins, and thin sheets

10 products

Torque Gauges

Test the accuracy of torque wrenches and screwdrivers

88 products

Load Cells

Measure forces and send them to computers to monitor and trigger actions in machinery

320 products

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Color Meters

Ensure consistent coloring on products such as labels and packaging

2 products

Torque Sensors

Convert manually applied torque into an electrical signal that you can measure and record

Fuel Injection Pressure Testers

Check fuel injection pressure to maintain your car's gas mileage

1 product

Tire Pressure Test Gauges

Calibrate the accuracy of tire pressure and tire inflation gauges

1 product

Barometers

Measure atmospheric pressure changes

8 products

Compression Testers

Check engine compression to maintain top performance

9 products

Refrigerant Pressure Testing Manifolds

Monitor refrigerant pressure when servicing air conditioning systems

7 products

GPS Navigators

Navigate on foot with real-time GPS data

1 product

Concentration Meters

Measure the concentration of solutions; also known as refractometers

9 products

Calibration Columns

Calibrate the flow rate of metering pumps

14 products

Airflow Meters

Measure airflow in duct, air filters, exhaust hoods, and other air applications

25 products

Air Particle Counters

Monitor indoor dust levels and measure filter efficiency in HVAC systems

1 product

Chemistry Meters

Take water-chemistry measurements more precisely than test strips and swabs

42 products

Antifreeze/Coolant Testers

Check the level of freeze protection in coolant systems to keep them running smoothly

2 products

Water Test Kits

All the chemicals and labware you need for on-site sampling and water-quality testing

30 products

Rain Gauges

Measure the amount of rainfall

1 product

Data Recorder Charts

Place in temperature and humidity data recorders to document readings over time

16 products

Weather Stations

Measure multiple weather conditions at the same time

9 products

Data Recorders

Log temperature, humidity, or pressure levels to track changes and troubleshoot your system

56 products

Windsocks

Track wind speed and direction

41 products

Counters

Record and display the number of times events or processes occur

105 products

Gas Leak Detectors

Find gas leaks in pipes, tubes, fittings, tanks, cylinders, and valves

23 products

Containers, Storage, and Furniture

Multimeter Cases

Store and carry multimeters

9 products

Caliper Cases

Store, protect, and carry calipers

8 products

Depth Gauge Cases

Specially fitted to store and transport depth gauges

3 products

Precision Measuring Tool Set Cases

Specially fitted to store and transport measuring sets

1 product

Caliper Pouches

Keep your caliper protected and within reach

1 product

Micrometer Holsters

Keep your micrometer protected and close at hand

1 product

Micrometer Cases

Specially fitted to protect micrometers during storage and transportation

7 products

Variance Indicator Cases

Specially fitted to store and transport variance indicators

6 products

Graduated Cylinders

Precisely measure and pour liquids

68 products

Test Tubes

Hold small samples to test, mix, and inspect them

1 product

Jars

Everything from standard plastic and glass to sterile and tamper-evident jars

15 products

Centrifuge Tubes

Hold samples for use in a centrifuge

2 products

Beakers

Glass, plastic, and metal beakers

110 products

Carboys

Store and dispense more than one gallon of liquid

40 products

Vials

Store less than two ounces of samples and other substances

4 products

Pails

Plastic, metal, rubber, and paper pails

34 products

Tape Measure Holders

Keep tape measures close at hand

2 products

Bottles

Store and pour liquids using plastic, glass, and metal bottles

132 products

Density Meter Jars

Add liquid and immerse a density meter until it floats for precise readings

6 products

Reagent Reservoirs

Hold reagents and samples for easy access during pipetting

7 products

Spoons

Stainless steel, plastic, and wood spoons

7 products

Pipettors

Dispense liquid in accurate, repeatable amounts with the push of a button

68 products

Pipettes

Transfer drops or a measured stream of liquid

23 products

Scoops

Collect and transfer bulk materials

17 products

Measuring Spoons

Measure ingredients equal to or less than 2 tbsp.

12 products

Burettes

Release liquid with greater precision than pipettes

6 products

Pipette Tips

Attach to the end of your pipettor to dispense small amounts of liquid

61 products

Measuring Cups

Measure ingredients larger than 2 tbsp.

2 products

Fabricating and Machining

Setup Blocks

Use as mounting bases and supports to ensure accurate angles and spacing

31 products

Angle Plates

Ensure accurate right angles and hold workpieces and fixtures perpendicular to your machine table

64 products

Sine Plates

Use with gauge blocks to measure angles on your workpiece or set up a part for precision grinding

4 products

Sine Bars

Measure, mark, and inspect exact angles on dies and other precision parts

2 products

Fixture Tables

Add clamps, brackets, and other components to build fixtures for welding and assembly

2 products

Rotary Angle Indexers

Position round workpieces at precise, repeatable angles for machining flats, hexes, and key slots

2 products

Multitools

A variety of tools and blades all in one

24 products

Scribers

Mark steel, stainless steel, plastic, glass, and ceramic surfaces

5 products

Temperature Sensors for 3D Printer Extruder Heating Elements

Measure heating block temperature and send it to printer controllers

4 products

Fluid Handling

Sights

Observe and monitor the contents of pipes, tanks, and other containers

246 products

Liquid-Level Gauges

Monitor fluid levels in containers

574 products

Gauge Glass

Create or repair liquid-level gauges to monitor fluid levels in containers

138 products

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

84 products

Flow Sights

Visually confirm flow and inspect liquid color and clarity

154 products

Water Detectors

Place near tanks, sump pumps, and pipe lines to alert you to water leaks

2 products

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

29 products

Flowmeters

Measure the flow rate of liquid or gas through your system

1,088 products

Pressure Gauge Snubbers

Reduce flow to suppress vibration and pressure spikes that can damage gauges

15 products

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

290 products

Gauge Guards

Shield gauges from corrosive liquids and gases; also called diaphragm seals

15 products

Pressure Test Gauges

Check and calibrate pressure gauges, transmitters, and equipment to maintain accuracy

614 products

Gauge Siphon Tubes

Fill with water to protect dry gauges from steam and high-temperature liquids; also called pigtails

31 products

Gauge Liquids

Refill the liquid indicator on gauges with a U-tube

5 products

Vacuum Test Gauges

Verify that equipment is taking accurate vacuum measurements

8 products

Pressure and Vacuum Transmitters

Convert pressure and vacuum measurements into a signal sent to remote displays and controllers

98 products

Pressure Transmitters

Send pressure readings to controllers and remote displays

365 products

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

17 products

Differential Pressure and Vacuum Gauges

Show changes in pressure and vacuum to monitor fans, blowers, and filters

20 products

Vacuum Gauges

Take vacuum readings in pumps, packaging equipment, and suction lines

121 products

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

3 products

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

242 products

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

124 products

Pressure Transmitter Displays

Remotely view pressure readings sent from a transmitter

2 products

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

70 products

Differential Pressure Sensors

Attach to gauges and switches to detect static pressure changes in air-handling equipment

5 products

Pitot Tubes

Connect to gauges to measure air flow in filters, cooling coils, and other air-handling equipment

4 products

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

1 product

Thermowells

Prevent damage to thermometers and temperature probes in pressurized tanks and pipelines

115 products

Thermocouple and RTD Protection Tubes

Shield thermocouple and RTD probes in large, unpressurized tanks

16 products

RTDs

Measure and transmit liquid, gas, and surface temperature more precisely than thermocouples

144 products

RTD Transmitters

Send temperature readings from RTD probes in containers, tanks, and pipes to switches and PLCs

10 products

Temperature and Humidity Transmitters

Regulate heating and cooling by sending temperature and humidity levels to PLCs and controllers

3 products

RTD Connectors

Attach plug-in connectors to RTD probes with wire leads

2 products

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

155 products

Thermocouples

Measure and transmit liquid, gas, and surface temperature

720 products

Humidity Controllers

Monitor humidity and control it by automatically turning equipment on and off

2 products

Humidistats

Control the humidity in an enclosure or space

6 products

Thermocouple Transmitters

Check system temperatures from your smartphone or tablet

9 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

2 products

Thermocouple Connector Adapters

Convert round-pin male connectors to flat-pin male connectors

10 products

Noncontact Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach materials without touching them

21 products

Hydraulic Accumulator Charging and Gauging Kits

Fill accumulators with nitrogen and test the pressure to ensure it’s within the correct range

2 products

Pressure Switches

Activate controls, set off alarms, and power equipment when a set pressure is reached

310 products

Differential Pressure Switches

Activate controls and alarms when the pressure difference between process lines exceeds a setpoint

53 products

Vacuum Switches

Activate controls, set off alarms, and power equipment when a set vacuum is reached

26 products

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

101 products

Flow Switches

Turn equipment on or off when flow rate reaches a set point

177 products

Pressure and Vacuum Switches

Activate controls, set off alarms, and power equipment when a set pressure or vacuum is reached

6 products

Material Handling

Forklift Fork Level Indicators

Mount to your forklift's mast to check if forks are level from the driver's seat

1 product

Compression Tools

Crimp sleeves around rope and wire rope to create loops for attaching fittings

54 products

Electrical Power, Networking, and Controlling

Mitutoyo Cords

Connect your measuring tool to miniprocessors, multiplexers, or PCs

22 products

Starrett Cords

Connect measuring tools with SPC data output directly to a PC

3 products

Potentiometers

Control speed, volume, and light intensity by varying electrical flow; also known as rheostats

6 products

Vibration Switches

Monitor vibration in machinery and shut it down or sound an alarm if levels rise

4 products

Rotary Encoders

Track the distance, direction, and speed of travel of motor shafts, conveyors, and wheels

34 products

Battery Surge Protectors/Charge Monitors

Display the charge level of a large-cell battery while protecting it from power surges

1 product

Linear Motion Position-Measuring Transmitters

Measure the position of an object moving in a straight line; also known as string pots

10 products

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

12 products

Computer Monitors

Display information in tough conditions such as on factory floors and outdoor jobsites

9 products

Air-Actuated Switches

Press with your hand or foot to turn circuits on and off with air pressure

13 products

Monitoring Relays

Trip circuits or sound an alarm when voltage, current, or other limits are exceeded

31 products

Photoelectric Sensors

Detect objects from longer distances than proximity and ultrasonic sensors

263 products

Cylinder Position Sensors

Monitor your air cylinder rod's position and turn the cylinder on and off

8 products

Ultrasonic Sensors

Measure the distance to objects and the level of liquids and materials

20 products

Fastening and Joining

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

2 products

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

27 products

Bit Adapters

Connect a variety of bits to drills, powered screwdrivers, ratchet wrenches, and other turning tools

3 products

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Tungsten Electrode Stick-Out Gauges

Measure the distance tungsten electrodes stick out from your nozzle for consistent TIG welding

2 products

Lubricating

Oil Dispensers

Keep machinery lubricated by applying oil

1 product

Oil Dispenser Guns

Pair with container-mount dispensers to control the flow of oil

5 products

Oil Dispensing Stations

Connect to a bulk oil container to fill hand-held dispensers

2 products

Oil-Dispensing Pump Metering Valves

Add to manual and electric pumps to dispense the right amount of oil to different lubrication points

6 products

Grease Dispenser Monitors

Extend the life of bearings by taking the guesswork out of how much to lubricate them

6 products

Power Transmission

Compressed Air Filter/Regulators

Simultaneously clean air that's running through a system and control its pressure

231 products

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

63 products

Compressed Air Regulators

Ensure continuous, safe operation of air-powered equipment by controlling air pressure

490 products

Lighting

Flashlight Magnifiers

Turn your flashlight into an illuminated magnifying glass

4 products

Communication

Tolerance Stickers

Add tolerance limits to indicators

1 product

Labels

Stick onto items to identify or convey information about them

106 products

Bottle Tags

Slip onto bottles to color code their contents

3 products

Display Screens

Display text, numbers, symbols, and other information from your electronics

27 products

Facility and Grounds Maintenance

Paint Line Marking Machines

Create clean lines on floors, ceilings, and paved surfaces

1 product

Heating, Ventilation, and Air Conditioning

HVAC Switches

Control and monitor airflow in HVAC systems automatically

3 products

HVAC Flame Detectors

Replace flame detectors in HVAC equipment such as furnaces, ovens, water heaters, and boilers

1 product

Safety Equipment

Heat Stress Monitors

Measure temperature, humidity, and radiant heat to keep people safe from heat-related hazards

9 products

Multi-Gas Detectors

Monitor air for carbon monoxide and combustible gases including methane, hydrogen, and propane

8 products

Oxygen Detectors

Too much or too little oxygen triggers alarms and warning lights

3 products

Carbon Dioxide Meters

Measure and display real-time carbon dioxide levels for indoor ventilation quality

1 product

Hydrogen Detectors

Alarms and lights alert you to the presence of hydrogen

4 products

Propane Detectors

Alarms and lights alert you to the presence of propane instantly or after a set exposure time

1 product

Methane Detectors

Alarms and lights alert you to the presence of methane instantly or after a set exposure time

1 product

Pedometers

Record steps and miles while you walk and run

2 products

Carbon Monoxide Detectors

Alarms, lights, or color changes alert you to the presence of carbon monoxide

8 products

Hydrogen Sulfide Detectors

Alarms and lights alert you to high levels of hydrogen sulfide

6 products

Welding Lens Magnifiers

Attach to welding lenses to enhance details

8 products

Respirator Filter Monitors

Track the quality of incoming air as it travels from your air line to your respirator

6 products

Sealing

Gauge Glass Gaskets

Seal the glass on level indicators to monitor liquids without leaks

14 products