Indicators | McMaster-Carr

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21,680 Products

Measuring and Inspecting

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

346 products

Variance Indicator Holders

Position and hold variance indicators in place for accurate readings

65 products

Variance Indicator Clamps

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

61 products

Variance Indicator Hole Attachments

Fasten to variance indicators to measure inside holes and around obstructions

1 product

Variance Indicator Backs

Replace the back on your variance indicator

21 products

Variance Indicator Holder Fine-Adjustment Attachments

Install on Starrett variance indicator holders for precise control over positioning

1 product

Variance Indicator Extension Rods

Lengthen the reach of your variance indicator

19 products

Variance Indicator Lifting Cords

Lift the spindle on your variance indicator without touching the indicator

1 product

Variance Indicator Holder Bases

Thread a post into the hole to mount variance indicators

18 products

Variance Indicator Holder Posts

Connect holder bases to clamps to hold variance indicators

5 products

Variance Indicator Lifting Levers

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

4 products

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 Depth Base Attachments

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

7 products

Variance Indicator Contact Points

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

123 products

Caliper Depth Rods

Attach to your caliper to measure depth

1 product

Calipers

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

208 products

Caliper Tips

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

4 products

Caliper Range Extenders

Expand your caliper's range to measure large items

7 products

Caliper Depth Base Attachments

Steady your caliper when measuring depth

5 products

Caliper Battery Covers

Protect the battery inside your caliper

8 products

Thread Size Identifiers

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

44 products

Height Gauges

Measure an object's height and mark workpieces for machining

51 products

Height Gauge Scribers

Replace the scriber on your height gauge

2 products

Height Gauge Calibrators

Ensure height gauges are accurate

11 products

Rulers

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

658 products

Machine Tool Indicators

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

6 products

Depth Gauges

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

60 products

Outside Micrometers

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

220 products

Outside Micrometer Stands

Hold micrometers to free your hands when measuring

3 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

Angle Indicators

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

24 products

Machine Tool Indicator Contact Points

Replace the contact point on your machine tool indicator

3 products

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

120 products

SPC Transmitters

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

8 products

Bore Gauge Calibrators

Set and check the accuracy of two-point bore gauges

1 product

Bore Gauge Heads

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

19 products

Flatness Gauges

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

3 products

Go/No-Go Outside Diameter Gauges

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

20 products

Plug Gauges

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

1,022 products

Thickness Gauges

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

40 products

Linear Scales

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

40 products

Inside/Outside Diameter Gauges

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

2 products

Micrometer Heads

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

36 products

Micrometer Check Gauges

Confirm your outside or depth micrometers are accurate

7 products

Depth Micrometers

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

46 products

SPC Receivers

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

6 products

Micrometer Head Mounting Brackets

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

16 products

Staff Gauges

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

32 products

Threaded Hole Location Gauges

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

70 products

Chamfer Gauges

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

21 products

Protractors

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

36 products

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

381 products

Inside Hole Calipers

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

12 products

Feeler Gauge Holders

Clamp onto your feeler gauge to keep it in position

2 products

Measuring Tool Data Processors

Analyze and print data from measuring tools with SPC output

3 products

Caliper Calibration Checkers

Test your caliper's accuracy

2 products

Squares

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

115 products

Calibration Squares

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

2 products

Step Gauges

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

5 products

Squareness Gauges

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

3 products

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

29 products

Combination Square Blades

Connect to a combination square head to create a combination square

17 products

Precision Measuring Tool Sets

Multiple precision measuring tools in one convenient case

18 products

Combination Square Heads

Attach combination square blades to form a combination square

28 products

Micrometer Speeder Knobs

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

4 products

Calibration Spheres

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

7 products

Angle Identifiers

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

2 products

Liquid-Level Tape Measures

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

61 products

Countersink Gauges

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

19 products

Calibration Rods

Check and set micrometers and other measuring tools

31 products

Gauging Pastes

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

2 products

Power Consumption Meters

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

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

Motor Phase Sequence Testers

Analyze a motor's rotation and electrical system to confirm proper wiring

1 product

Oscilloscopes

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

1 product

Multimeters

Take current, voltage, resistance, and other electrical measurements

109 products

Multimeter Hangers

Free up your hands when using a Fluke multimeter

1 product

Battery Discharge Indicators

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

3 products

Electrical Resistance Meters

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

4 products

Oscilloscope/Multimeters

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

4 products

Test Lead Tips

Adapt Fluke test leads to perform electrical tests in tight spaces

1 product

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Test Lead Adapters

Change tip styles to take different measurements with the same test leads

6 products

Test Lead Sensors

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

2 products

Test Lead Clips

For hands-free testing, create a temporary yet secure electrical connection

77 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

Patch Cords

Make point-to-point connections between electrical testing equipment and your devices

12 products

Current Indicating Rings

Run wire through rings to monitor AC current flow

5 products

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

Decade Boxes

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

3 products

Meter Computer Connectors

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

1 product

BNC Test Cords

Connect oscilloscopes and other testers to your equipment

4 products

Power Consumption Data Loggers

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

4 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

Lathe Alignment Bars

Confirm that your lathe headstock and tailstock are aligned for accurate machining

1 product

Levels

Ensure surfaces are completely horizontal or vertical

189 products

Level Vials

Replace vials in levels or equipment

16 products

Alignment Lasers

Project a dot, line, or crosshair line as a reference point to position equipment

61 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

Inspection V-Blocks

Cradle rods and other round workpieces for precision measuring or inspecting

10 products

Plumb Bobs

Suspend from a string to create a vertical reference line

10 products

Level Mounts

Strap to nonmagnetic surfaces to attach a magnetic level

2 products

Pipe Flange Aligners

Line up flange holes so they bolt securely and connections won’t leak

21 products

Blade Balancers

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

1 product

Edge Finders

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

17 products

Center Finders

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

1 product

Rivet Hole Locators

Mark even spacing for rivets and other fasteners before you drill

1 product

Transfer Punches

Mark the center of an existing hole onto a separate workpiece

320 products

Layout Compasses

Draw circles and transfer distance measurements

27 products

Center Punch/Angle Indicators

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

5 products

Straightedges

Draw straight lines and check the straightness of surfaces

44 products

Parallel Rules

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

1 product

Angle Transfers

Duplicate any angle in construction and other applications

2 products

Straightedge/Protractors

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

2 products

Center Punches

Mark center holes in metal and other material

85 products

Position Indicators

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

71 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

Vibration Monitors

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

16 products

Speed Guns

Point and shoot for instant speed readings in mph

2 products

Stroboscopes

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

23 products

Barometers

Measure atmospheric pressure changes

Tire Pressure Test Gauges

Calibrate the accuracy of tire pressure and tire inflation gauges

1 product

Refrigerant Pressure Testing Manifolds

Monitor refrigerant pressure when servicing air conditioning systems

7 products

Compression Testers

Check engine compression to maintain top performance

9 products

Paper Pressure Analyzers

Take lab-quality scans of pressure recording film for frequent onsite measurements

1 product

Pressure Film

Measures pressing forces in equipment by creating an instant, permanent image of pressure variation

45 products

Fuel Injection Pressure Testers

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

1 product

Magnetic Field Indicators

Measure the strength of a magnetic field in gauss

12 products

Density Meters

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

48 products

Passivation Testers

Detect iron in stainless steel parts to confirm they're properly passivated

1 product

Hardness Testers

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

38 products

Polarity Testers

Locate the poles on a magnet

5 products

Thermometers

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

517 products

Thermometer Cooling Jackets

Connect to a compressed air or water line to keep infrared thermometer transmitters from overheating

1 product

Thermometer Covers

Prevent dirt buildup on infrared thermometer transmitters

1 product

Thermometer Air Purges

Blow dust and moisture off infrared thermometer transmitter lenses

1 product

Thermometer Insulating Tubes

Prevent infrared thermometer transmitters from overheating by shielding them from hot surfaces

1 product

Combustion Analyzers

Measure boiler and furnace combustion efficiency

3 products

Humidity-Indicating Plugs

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

6 products

Humidity-Indicating Cards

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

9 products

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

13 products

Thermal Cameras

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

7 products

Temperature-Indicating Sheets

Stick to surfaces and the color changes as the temperature rises and falls

8 products

Humidity Meters

Measure relative humidity without complex calculations

4 products

Temperature Crayons

Less messy than liquids, draw marks that melt as surfaces reach a specific temperature

75 products

Temperature-Indicating Liquids

Brush onto surfaces and markings melt when they reach a specific temperature

22 products

Wristwatches

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

2 products

Hour Meters

Display running time on a machine so you can schedule preventative maintenance

51 products

Inspection Indicators

Mount to your equipment for a signal when it's time for maintenance or inspection

4 products

Stopwatches

Track time or record an event from start to finish

11 products

Timers

Count up or down to measure a period of time

31 products

Light Meters

Measure light quality and intensity

20 products

Lead-Check Swabs

Rub on any surface to instantly detect the presence of lead

1 product

Chemistry Meters

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

42 products

Water Test Strips

Dip into water and a color change indicates chemicals, pH, and other conditions

20 products

pH Testing Paper

Check pH levels without a meter

9 products

Air Particle Counters

Monitor indoor dust levels and measure filter efficiency in HVAC systems

1 product

Water Test Kits

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

30 products

Moisture Meters

Stick in wood and other building materials to view moisture levels

2 products

Gloss Meters

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

2 products

Color Calibrators

Calibrate your color meter to identify colors with precision

1 product

Color Meters

Ensure consistent coloring on products such as labels and packaging

2 products

Counters

Record and display the number of times events or processes occur

105 products

Airflow Meters

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

25 products

Calibration Columns

Calibrate the flow rate of metering pumps

14 products

Belt Tension Gauges

Check belt tension to minimize vibration, noise, and slippage

16 products

Force Gauges

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

133 products

Force Gauge Grips

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

10 products

Tamper-Evident Paint

Cracks from movement when dried on equipment to indicate vibration or tampering

12 products

Monoculars

Magnify still objects from far away to view features you couldn't see with the naked eye

1 product

Optical Comparators

Magnify your part to check for dimensional accuracy and surface defects

19 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

301 products

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Torque Sensors

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

22 products

Scales

Bench-top, hanging, floor, and conveyor scales

207 products

Weather Stations

Measure multiple weather conditions at the same time

9 products

Windsocks

Track wind speed and direction

41 products

Rain Gauges

Measure the amount of rainfall

1 product

GPS Navigators

Navigate on foot with real-time GPS data

1 product

Data Recorders

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

56 products

Data Recorder Charts

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

16 products

Radiation Detectors

Test for radiation, even in low amounts or from microwave ovens

6 products

Leak-Detecting Dyes

Bright colors help you spot leaks in water and hydraulic systems without using ultraviolet light

30 products

Smoke Pens

Produce smoke to observe airflow and detect leaks in HVAC systems; reusable, unlike smoke candles

2 products

Gas Leak Detectors

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

23 products

Smoke Candles

Light the wick for a short burst of smoke to observe airflow and detect leaks in HVAC systems

4 products

Leak-Detecting Pipe Flange Covers

Wrap around pipe flanges to show when there's a leak and contain it

33 products

Smoke Pellets

Detect airflow and leaks in HVAC systems near server rooms and other areas with electronics

4 products

Smoke Powder

No flame needed—release a burst of powder to detect airflow and leaks in HVAC systems

3 products

DIN Panel Adapters

Make a meter face sit flush with a DIN cutout in a panel or enclosure

3 products

Stethoscopes

Detect internal mechanical problems like worn parts, excessive vibration, and fluid leaks

8 products

Sound Level Meters

Measure noise levels to determine if an area requires hearing protection

9 products

Communication

Indicator Lights

Call attention to hazards and changes in status with flashing, strobe, and other lights

235 products

Audible Alarms/Indicator Lights

Alert people with both light and sound

91 products

Vehicle Lights

Illuminate your way, mark your vehicle's clearance, or send signals to people and drivers

2 products

Audible Alarms

Everything from bells and whistles to horns and sirens

169 products

Traffic Lights

Signal and direct traffic

13 products

Barricade Lights

Mount to barricades so they're easier to see in low-light conditions

3 products

Aircraft Signal Lights

Mount to the top of towers to warn low-flying aircraft

2 products

Labels

Stick onto items to identify or convey information about them

147 products

Tags

Hang throughout facilities to convey information

790 products

Tamper-Evident Seal Presses

Squeeze the handles to seal locks on wire tamper-evident seals

8 products

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

116 products

Fire Hydrant Markers

Label fire hydrants to indicate their flow rate or status

4 products

Bottle Tags

Slip onto bottles to color code their contents

3 products

Stack-Prevention Shipping Cones

Alert employees not to stack on top of pallets and packages; more visible than shipping labels

1 product

Display Screens

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

27 products

Fluid Handling

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

3 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 Gauge Snubbers

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

15 products

Differential Pressure Gauges

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

124 products

Gauge Liquids

Refill the liquid indicator on gauges with a U-tube

5 products

Vacuum Gauges

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

121 products

Differential Pressure Transmitters

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

70 products

Pressure and Vacuum Gauges

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

281 products

Pressure Transmitters

Send pressure readings to controllers and remote displays

371 products

Pressure Transmitter Displays

Remotely view pressure readings sent from a transmitter

2 products

Pressure and Vacuum Transmitters

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

98 products

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

17 products

Differential Pressure Sensors

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

5 products

Gauge Siphon Tubes

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

31 products

Pressure Test Gauges

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

614 products

Vacuum Test Gauges

Verify that equipment is taking accurate vacuum measurements

8 products

Differential Pressure and Vacuum Gauges

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

20 products

Pitot Tubes

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

4 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

Sights

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

246 products

Flow Sights

Visually confirm flow and inspect liquid color and clarity

154 products

Flowmeters

Measure the flow rate of liquid or gas through your system

1,012 products

Flow Transmitters

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

84 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

Humidistats

Control the humidity in an enclosure or space

6 products

Thermocouples

Measure and transmit liquid, gas, and surface temperature

720 products

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

155 products

Thermocouple Transmitters

Check system temperatures from your smartphone or tablet

9 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

Temperature and Humidity Transmitters

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

3 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 Connectors

Attach plug-in connectors to RTD probes with wire leads

2 products

Humidity Controllers

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

2 products

Paddle Level Switches

Actuate when the paddle stops rotating to indicate the level of dry material

6 products

Flow Switches

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

177 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

Hose and Hose Fittings

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

2 products

Containers, Storage, and Furniture

Variance Indicator Cases

Specially fitted to store and transport variance indicators

6 products

Micrometer Holsters

Keep your micrometer protected and close at hand

1 product

Depth Gauge Cases

Specially fitted to store and transport depth gauges

3 products

Multimeter Cases

Store and carry multimeters

9 products

Jars

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

2 products

Burettes

Release liquid with greater precision than pipettes

6 products

Bottles

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

6 products

Pipettors

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

34 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

Power Cords

Connect equipment and devices to a power source

2 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

39 products

Extension Cords

Extend the reach of power from an outlet

174 products

Extension Cord Reels

Keep extension cords easy to access without creating a tripping hazard

4 products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

75 products

Solenoid Valve Sockets

Pair with plugs or receptacles to connect solenoid components

3 products

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

31 products

Outlet Strips

Plug in multiple devices to power them from a single outlet

16 products

Computer Monitors

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

9 products

Multifunction Chemistry Controllers

Use pH or oxidation reduction potential (ORP) levels to turn equipment on or off

7 products

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

17 products

Motor Starter Switches

Combine with a thermal overload element to build a starter that can handle high-current-rated motors

3 products

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

147 products

Sensor Switch Transmitters

Monitor objects, switch equipment on and off, and send data to control systems with a single device

21 products

Vibration Switches

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

4 products

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

681 products

Latching Relays

Lock into position so they don't require constant voltage to stay switched

20 products

Safety Relays

Monitor circuits and force machines to a safe stop if the relay detects a fault

25 products

Proportional-Control Relays

Gradually adjust output instead of turning on or off

12 products

Interface Relays

Isolate input and output circuits to protect PLCs and other controllers

48 products

Monitoring Relays

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

18 products

Power Supplies

Convert your facility's AC voltage to power equipment that runs on DC voltage

4 products

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

54 products

Transformers

Raise or lower voltage to meet the needs of an individual circuit

12 products

Circuit Interrupters

Ground fault protection stops injuries from electric shocks; hardwire to equipment to break circuits

1 product

Lighting

Light Bulbs

Standard household, miniature, compact, tubular, ultraviolet, and blacklight bulbs

607 products

Light Dimmers

Adjust the brightness of lights, even in large workspaces

2 products

Light Sockets

Install or replace sockets in fixtures for standard household, tubular, compact, or miniature bulbs

6 products

Light Lenses

Reduce glare from light bulbs and protect them from damage

6 products

Light Pipes

Concentrate and direct light from the bulb on a circuit board to a display

16 products

Light Transmitters

Light up small and hard-to-reach areas such as the inside of models, prototypes, and circuit boards

18 products

Fastening and Joining

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

388 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

Used with nuts to create a stronger joint than flat and rounded screws

10 products

Tungsten Electrode Stick-Out Gauges

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

2 products

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

41 products

Building and Machinery Hardware

Indicating Knobs

Control devices and view settings at a glance

89 products

Hand Wheels

Rotate to adjust machinery, valves, drill presses, and other equipment

7 products

Lockout Procedure Stations

Store all of your lockout safety procedure forms in one place

4 products

Cam Latches

Secure drawers, cabinets, mailboxes, and other enclosures

108 products

Key Racks

Store and quickly identify keys with color-coded and labeled tags

2 products

Fabricating and Machining

Multitools

A variety of tools and blades all in one

1 product

3D Printer Probes

Map the ups and downs of print surfaces so printers extrude at the proper height

1 product

Temperature Sensors for 3D Printer Extruder Heating Elements

Measure heating block temperature and send it to printer controllers

4 products

Rotary Angle Indexers

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

2 products

Scribers

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

23 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

Heating, Ventilation, and Air Conditioning

Desiccants

Remove moisture from the air to protect items during shipping and storage

9 products

Thermostats

Connect to heaters, fans, and air conditioners to control the temperature

2 products

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

Air Filters

Trap dust and debris in HVAC, exhaust, and electronics systems to improve efficiency and air quality

2 products

Safety Equipment

Alcohol Indicators

Test blood alcohol level in two minutes

1 product

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 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

Sound Level Monitors

Continuously measure ambient sound levels to confirm they fall within your programmed thresholds

5 products

Radiation Dose Meters

Attach to your pocket or nearby objects to track the accumulated radiation you've been exposed to

3 products

Earplug Fit Testers

Confirm your earplugs deliver the right level of hearing protection

1 product

Respirator Filter Monitors

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

6 products

Fire Alarms

Alert people to fires with loud warnings

36 products

Fire Post Indicators

Open and close water supply valves for fire systems buried underground or in a wall

2 products

Lubricating

Grease Guns

Manually inject lubrication through grease fittings on equipment and machinery

1 product

Facility and Grounds Maintenance

Faucet Timers

Count down to encourage effective handwashing that helps prevent the spread of illness

1 product

Sealing

Gauge Glass Gaskets

Seal the glass on level indicators to monitor liquids without leaks

14 products