Safely measure the temperature of liquids and gases in places where flammable gases, vapors, dust, and fibers are present. The head of these transmitters is FM approved and CSA certified for use in hazardous areas. It’s also NEMA 4X and IP68 rated, so it stands up to wet and dusty environments and even brief submersion. These transmitters convert readings to analog signals and send them to devices such as remote displays and programmable logic controllers (PLCs).

To measure liquids, you’ll need to connect a thermowell or protective tube before immersing the probe in a tank or pipe. Otherwise, liquid will be sucked into the head through the fitting, which will damage the wiring. The probe can also be used to measure solids, such as molds and dies—it's made of stainless steel or nickel to shield against impacts. It also has a layer of magnesium oxide to protect the wiring inside the probe. For accurate readings, a spring inside the fitting pushes the probe tip forward, keeping it in constant contact with the surface you're measuring. The head has a removable cap for easy access to sensor connections.

These thermocouples are manufactured to conform to ASTM E230 for accuracy. Accuracy is how far off the reported value is from the actual temperature.