Dwyer Instruments Inc. 540161 Glow-in-the-dark bimetal thermometer 0-500°F measurement tool

Glow-in-the-dark bimetal thermometer

This Dwyer Instruments dial thermometer measures temperatures from 0 to 500 degrees Fahrenheit. Its glow-in-the-dark dial improves readability in low-light conditions. The instrument is built for industrial and mechanical environments where reliable temperature indication is required. A stainless steel housing and glass lens protect the movement from harsh surroundings.

4-inch stem with 1/2-inch NPT back connection

The 4-inch stem length and 1/2-inch NPT back connection suit specific process fittings. Upgrading from a shorter stem or a bottom-connected model is worthwhile when the installation demands this exact insertion depth and rear mounting orientation. The fixed dimensions mean the thermometer only fits applications that match these specifications.

5-inch dial diameter for clear reading

The 5-inch dial diameter provides a large scale for comfortable reading at a distance. It handles high-temperature monitoring up to the 500-degree limit across the full span. Headroom ends at the top of the range; processes exceeding this temperature require a different instrument. The included NIST-traceable certificate supports calibration programmes.