Temperature Sensor Display Type None Sensing Element Type Nickel Output Not Applicable Housing Type Conduit Box Housing Material Steel Housing Color Metallic Probe Length 18 in Temperature Accuracy +/-3.4F Degrees Electrical Connection Type Hardwired Product Type Duct Temperature Sensor Maximum Sensing Temperature 250 Degrees F Minimum Sensing Temperature -50 Degrees F For Use With Building Automation Systems Building Automation System Compatible Loop Resistance 1k ohm