CANARM TF115 Waterproof Sunne Thermostat, 120, 240 V

The TF115 thermostat has a sealed molded plastic case with all exposed metal parts of stainless steel. The unit operates by expansion and construction of liquid in response to temperature change. The liquid is contained within the stainless steel coiled sensor and actuates a stainless steel diaphragm, which in turn operates a heavy-duty precision snap action switch. The non-removable adjusting knob is provided with a large visible scale for ease of setting.