Sensor Probes | McMaster-Carr

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Thermocouple Type

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Flat-Pin Mini Thermocouple Connector

M12

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Maximum Temperature

1,000° F to 1,999.9° F

2,000° F to 2,999.9° F

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Retractable Insulation Piercing Grabber

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Threaded Needle Tip with Alligator Clip

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Benzoic Acid Isoamyl Ester

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3A992

EAR99

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Solar Irradiance Meter

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2,000 Products

Most Likely Products

Thermocouples

Measure and transmit liquid, gas, and surface temperature

715 products

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Spring Test Probes

Use in spring test probe sockets to test for continuity and damaged components in circuit boards

79 products

All Results

Measuring and Inspecting

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

41 products

Spring Test Probes

Use in spring test probe sockets to test for continuity and damaged components in circuit boards

79 products

Multimeters

Take current, voltage, resistance, and other electrical measurements

108 products

Oscilloscope/Multimeters

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

4 products

Oscilloscopes

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

1 product

Patch Cords

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

12 products

Test Lead Sensors

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

2 products

Electrical Resistance Meters

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

4 products

Electronic-Component Testers

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

4 products

Chemistry Sensors

Pair with chemistry meters to test oxidation reduction potential (ORP) or pH

11 products

Chemistry Meters

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

42 products

Air Particle Counters

Monitor indoor dust levels and measure filter efficiency in HVAC systems

1 product

Coordinate Measurement Machine Probes

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

50 products

Thermometers

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

515 products

Temperature and Humidity Meters

Simultaneously measure temperature and relative humidity

13 products

Humidity Meters

Measure relative humidity without complex calculations

4 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

Light Meters

Measure light quality and intensity

2 products

Data Recorders

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

56 products

Water Detectors

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

2 products

Airflow Meters

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

25 products

Belt Tension Gauges

Check belt tension to minimize vibration, noise, and slippage

2 products

Barometers

Measure atmospheric pressure changes

8 products

Fluid Handling

Thermocouples

Measure and transmit liquid, gas, and surface temperature

715 products

RTDs

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

144 products

Noncontact Temperature Sensors

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

31 products

Temperature and Humidity Transmitters

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

2 products

Thermocouple Transmitters

Check system temperatures from your smartphone or tablet

9 products

Flow Switches

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

26 products

Electrical Power, Networking, and Controlling

Development Board Sensor Modules

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

1 product

Multifunction Chemistry Controllers

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

7 products

Monitoring Relays

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

31 products

Heating, Ventilation, and Air Conditioning

HVAC Flame Detectors

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

1 product

Fabricating and Machining

3D Printer Probes

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

1 product

Safety Equipment

Multi-Gas Detectors

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

8 products