Non-Adjustable Thermistor Sensor Only, Primary Use: T7300 Programmable Commercial Thermostat(Only In Return Air)To Control Heating Or Cooling Equipment, Temperature Range: 60 To 90 Degree F, Thermistor: 1420 Ohms At 75F, Weight:1 Oz, Dims Of Sensor:3-1/4"H X 5/16"W, Cord:32"L, Assembled In Canada, Additional Number: 27C40, In Manufacturer Box