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Capillary Sensor Tube

Definition

A thin tube attached to a larger sensor bulb, filled with a liquid or vapor that expands and contracts as the temperature changes. These are used to control an electrical circuit, which can, for example, start or stop a heater.

Also known as

Capillary Thermostat, Capillary Tube, Cap Tube

Mentioned in

Install Electric Baseboard Heater Cost