Tel-Tru Spring Held Pipe thermometers are designed to measure surface temperatures of pipes, cylinders, spindles, etc. that have outer diameters of 3/4" or more.
Tel-Tru Surface Thermometers are 2" dial compact thermometers. Exposed bimetal coil sensors provide a quick and accurate surface temperature reading. Each thermometer comes complete with a spring kit (one each of 3/4", 2", and 4" spring lengths) that can be used separately or connected together for larger diameter pipes.
