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