Digital Meters | McMaster-Carr

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Flat-Pin Mini Thermocouple Connector

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2,658 Products

Most Likely Products

Electrical Panel Meters

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

22 products

Multimeters

Take current, voltage, resistance, and other electrical measurements

95 products

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Outside Micrometers

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

101 products

Pressure Transmitters

Send pressure readings to controllers and remote displays

14 products

All Results

Measuring and Inspecting

Electrical Panel Meters

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

22 products

Multimeters

Take current, voltage, resistance, and other electrical measurements

95 products

Multimeter Hangers

Free up your hands when using a Fluke multimeter

1 product

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Test Lead Tips

Adapt Fluke test leads to perform electrical tests in tight spaces

1 product

Test Lead Sensors

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

2 products

Meter Computer Connectors

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

1 product

Oscilloscopes

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

1 product

Electrical Resistance Meters

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

4 products

Static Charge Meters

Locate and accurately measure static charges in environments with sensitive electronic equipment

2 products

Oscilloscope/Multimeters

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

4 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

1 product

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

Current Meters

Measure current without interrupting the circuit

3 products

Line Testers

Diagnose issues in telephone lines or Ethernet cables

1 product

Voltage Meters

Measure voltage in electrical components

7 products

Data Cable Testers

Identify open, short, and incorrectly wired circuits in coaxial and data cable

2 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

Outside Micrometers

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

101 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

Micrometer Speeder Knobs

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

4 products

Calipers

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

146 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 Battery Covers

Protect the battery inside your caliper

8 products

Caliper Depth Base Attachments

Steady your caliper when measuring depth

5 products

SPC Wireless Receivers

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

6 products

Cords for Measuring Tool Data Processors

Connect measuring tools with SPC output to a processor for uploading data

23 products

Precision Measuring Tool Sets

Multiple precision measuring tools in one convenient case

10 products

Inside Hole Calipers

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

12 products

Bore Gauges

Insert into a hole and expand the contacts to measure diameter

33 products

Machine Tool Indicators

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

4 products

Caliper Calibration Checkers

Test your caliper's accuracy

2 products

Depth Micrometers

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

18 products

Micrometer Check Gauges

Confirm your outside or depth micrometers are accurate

7 products

Calibration Rods

Check and set micrometers and other measuring tools

31 products

Micrometer Heads

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

21 products

Variance Indicator Lifting Cords

Lift the spindle on your variance indicator without touching the indicator

1 product

Height Gauges

Measure an object's height and mark workpieces for machining

24 products

SPC Wireless Transmitters

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

8 products

Depth Gauges

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

23 products

Variance Indicators

Identify small dimensional differences when checking part quality and alignment

117 products

Thickness Gauges

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

25 products

Inside Hole Micrometers

Find the inside diameter of cylinders and rings

9 products

Protractors

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

4 products

Angle Indicators

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

10 products

Linear Scales

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

34 products

Measuring Wheels

Roll along surfaces to measure distance

3 products

Measuring Tool Data Processors

Analyze and print data from measuring tools with SPC output

3 products

Map Distance Measuring Tools

Slide across maps and blueprints to measure distances

4 products

Bore Gauge Heads

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

19 products

Step Gauges

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

2 products

Chamfer Gauges

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

5 products

Height Gauge Calibrators

Ensure height gauges are accurate

3 products

Micrometer Head Mounting Brackets

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

16 products

Wristwatches

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

2 products

Stopwatches

Track time or record an event from start to finish

9 products

Timers

Count up or down to measure a period of time

26 products

Hour Meters

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

20 products

Inspection Indicators

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

4 products

Thermometers

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

120 products

Counters

Record and display the number of times events or processes occur

42 products

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 Cooling Jackets

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

1 product

Thermometer Insulating Tubes

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

1 product

DIN Panel Adapters

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

3 products

Thermal Cameras

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

6 products

Combustion Analyzers

Measure boiler and furnace combustion efficiency

3 products

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

9 products

Tachometers

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

25 products

Vibration Meters

Spot-check vibration to gauge the health of your machine

3 products

Speed Guns

Point and shoot for instant speed readings in mph

1 product

Position Indicators

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

5 products

Stroboscopes

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

13 products

Force Gauge Grips

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

10 products

Hardness Testers

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

8 products

Hardness Calibration Test Blocks

Confirm testers are accurate for a specific Rockwell or Brinell hardness

1 product

GPS Navigators

Navigate on foot with real-time GPS data

1 product

Light Meters

Measure light quality and intensity

20 products

Scales

Bench-top, hanging, floor, and conveyor scales

145 products

Torque Gauges

Test the accuracy of torque wrenches and screwdrivers

44 products

Levels

Ensure surfaces are completely horizontal or vertical

15 products

Barometers

Measure atmospheric pressure changes

8 products

Weather Stations

Measure multiple weather conditions at the same time

3 products

Data Recorders

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

36 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

19 products

Magnetic Field Indicators

Measure the strength of a magnetic field in gauss

2 products

Airflow Meters

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

18 products

Gas Leak Detectors

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

5 products

Radiation Detectors

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

2 products

Sound Level Meters

Measure noise levels to determine if an area requires hearing protection

8 products

Borescopes

Insert the camera into hard-to-reach areas to view them from your smart device or the display

10 products

Moisture Meters

Stick in wood and other building materials to view moisture levels

1 product

Force Gauges

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

52 products

Load Cells

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

301 products

Density Meters

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

1 product

Viscosity Testers

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

2 products

Refrigerant Cylinder Scales

Weigh refrigerant cylinders to dispense the correct amount of refrigerant

2 products

Level Mounts

Strap to nonmagnetic surfaces to attach a magnetic level

2 products

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

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 Meters

Ensure consistent coloring on products such as labels and packaging

1 product

Optical Comparators

Magnify your part to check for dimensional accuracy and surface defects

4 products

Inspection Cameras

Reach into tight and hard-to-access spots and stream the inspection on your phone or tablet

2 products

Fluid Handling

Pressure Transmitters

Send pressure readings to controllers and remote displays

14 products

Pressure Transmitter Displays

Remotely view pressure readings sent from a transmitter

2 products

Pressure Gauges

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

9 products

Pressure and Vacuum Transmitters

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

22 products

Differential Pressure and Vacuum Gauges

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

6 products

Pressure Test Gauges

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

102 products

Vacuum Gauges

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

1 product

Pressure and Vacuum Gauges

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

1 product

Differential Pressure Gauges

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

6 products

Flowmeters

Measure the flow rate of a liquid or gas

90 products

Flow Transmitters

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

31 products

RTDs

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

6 products

Noncontact Temperature Sensors

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

5 products

Electrical

Development Board Sensor Modules

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

1 product

Power Supplies

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

26 products

Communication

Display Screens

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

27 products

Computer Monitors

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

9 products

Fabricating and Machining

Retrievers

Grab and pull objects out of hard-to-reach spots

1 product

Containers, Storage, and Furniture

Multimeter Cases

Store and carry multimeters

9 products

Burettes

Release liquid with greater precision than pipettes

6 products

Micrometer Holsters

Keep your micrometer protected and close at hand

1 product

Pipettors

Dispense a small amount of liquid for speedy, routine dispensing jobs

18 products

Facility and Grounds Maintenance

Faucet Timers

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

1 product

Safety Equipment

Heat Stress Monitors

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

4 products

Sound Level Monitors

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

4 products

Earplug Fit Testers

Confirm your earplugs deliver the right level of hearing protection

1 product