Tel-Tru Dual Magnet Thermometers are designed for horizontal or ferrous non-horizontal surfaces. The bimetallic sensor is located in a draft shield and is in thermal contact with the surface to be measured.
Tel-Tru Surface Thermometers are 2" dial compact thermometers. Exposed bimetal coil sensors provide a quick and accurate surface temperature reading.
Two Alnico magnets act as a base and hold the thermometer in place.
Single or dual reset hands are options.