Sens-A-Coils feature a sensor housed in a small bulb that is attached to copper clips.
The sensors use fast response thermistors in a plastic overmolded copper clip designed to snap onto 3⁄8-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,