Reed Switch, Dovetail, Switching Current 0.001 to 0.03 A, Switching Voltage 0-120V AC, For Bore Dia. 3/4 to 4 in, Function Normally Open, Lead Length (Ft.) 0.5 ft, Temp. Range (F) -4 Degrees to 176 Degrees F, Display LED Indicator Light, Number of Wires 2