Easy to install, color-coded leads|Include thermometer Include long-lasting Micro Switch mechanism, makes on temperature fall|Rugged, plastic mounting base|Mount on standard 2 x 4 in outlet box or 4 x 4 in junction box|Select models include extra knob decal for recalibration, if necessary|Provide line voltage control of electric heating systems|1-heat stage|6 in black and red leadwires|Bi-metal sensor element|1 F accuracy|3 deg F differential temperature|Brush gold finish|40 to 80 deg F ambient and setting temperature range|SPST switching action|Non-inductive resistive 22 A at 120/208/240 VAC, 19 A at 277 VAC electrical rating