For a longer service life than thermocouple probes and more consistent readings over time, these thermometers have a resistance temperature detector (RTD) probe. They come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy.

The long stem reaches the bottom of deep beakers and flasks, and the water-resistant housing stands up to washdown conditions and outdoor use. These thermometers come with a calibration certificate traceable to NIST that states it has passed a test for accuracy.

Ensure reliable readings with these thermometers. They come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy.

Determine relative humidity within ±4% accuracy and temperature within ±1.8° F accuracy. This meter comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy. It also displays dew point or frost point.

Clip this compact thermometer to your belt loop or keys for temperature readings on the go. It comes with a calibration certificate traceable to NIST that states it has passed a test for accuracy.

These thermometers have a thermocouple probe that can handle extreme temperatures, and they come with a calibration certificate traceable to NIST that states they have passed a test for accuracy.

Externally monitor the air temperature inside freezers, refrigerators, water baths, and incubators. These thermometers come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy. The probe is insulated in a bottle filled with mercury-free fluid to prevent false readings from rapid temperature changes such as opening freezer doors.

The display simultaneously shows the high, low, and current temperatures. These thermometers have a programmable alarm to indicate when temperature rises above or below your actuation point.

Check that floors, garments, and other work surfaces won’t discharge static electricity. These laboratory-grade meters are made in the U.S. and certified to NIST standards for accuracy and reliability. They’re essential in server rooms, clean rooms, and other environments where static could harm sensitive electronics. Also known as surface resistance meters, they’re fully compliant with ANSI for testing and validating workplace static control systems.

To prevent static discharge, surface resistance needs to be less than 1×10⁹ ohms. Our meters measure resistance as high as 1×10¹² ohms, with the results clearly displayed on a crisp OLED screen. Readings are exact to two places, with no rounding to the nearest exponent like with less sophisticated meters.

Each meter comes with leads and two 5 lb. probes. Place one probe on a surface to measure the resistance to the ground (Rtg), or place both on a surface to measure the point-to-point resistance between them (Rtt).

Obtain the most accurate readings possible with these thermometers that include a calibration certificate traceable to NIST that states they’ve passed a test to fall within ±0.5° F accuracy. The thermometer probe is connected to a cable, so the display can be mounted away from your system for remote viewing.

The included calibration certificate traceable to NIST states that these thermometers have passed a test for accuracy, and the silicone-filled dial keeps the pointer from fluttering in high-vibration environments.

3897K51 are not available in 50° to 500° F/10° to 260° C.

Designed for laboratory applications, these thermometers determine temperature within ±0.75° F accuracy.

To confirm the accuracy of noncontact temperature readings of dangerous and inaccessible surfaces, these thermometers come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy.

Warning: These infrared thermometers are not intended for medical use. Use Noncontact Forehead Thermometers for medical use.