Relay, MachineAlert, Thermistor Monitor, 24-230VAC/DC, -25 to 60 deg C @Operating, 88mm L x 97mm D, w/ Automatic Reset, Pwr On+Tripped, 1x Output Relay: 250VAC, 4A, 6x PTC Sensors: IEC 34-11-2, 1500Ohms