The sensors use fast response thermistors in a plastic overmolded copper clip designed to snap onto 38-in. return bends. Available in 5 and 10-k models, the unit comes with a 10-ft awg #22 jacketed cable.

Spectrum Sensors & Controls Inc.,
424 Crown Point Circle, Grass Valley, CA 95945,
(800) 880-7730,
specsensors.com