Dwyer Instruments BTM3256D 3 in Dial Bimetal Thermometer 50 to 300 F measurement tool

3-inch Dial Bimetal Thermometer

The Dwyer Instruments BTM3256D is a 3-inch dial bimetal thermometer designed for temperature measurement from 50 to 300 degrees Fahrenheit. It provides a direct mechanical readout without requiring external power, making it suitable for industrial and process monitoring applications where simple, reliable indication is needed.

1/2 in NPT Back Connection

The thermometer features a 1/2 inch NPT back connection with a 2.5 inch stem length for direct immersion into process media. Its 300 series stainless steel housing and glass lens resist corrosion and withstand harsh environments. The self-contained bimetal element eliminates the need for wiring, transmitters, or separate power supplies, freeing up electrical infrastructure and simplifying installation.

Suited for Local Mechanical Indication

This instrument suits operators who need a rugged, power-free temperature gauge with NIST-traceable calibration assurance for ranges between 50 and 300 degrees Fahrenheit. It is not intended for applications requiring remote signal transmission, data logging, alarm contacts, or temperature ranges outside the stated 50 to 300 degree Fahrenheit span.