LEVITON: 31A00-7 This is an open box item never used. It is sold "NO RETURNS" Used for sensing indoor or outdoor temperatures from -40 F to 120 F. It is coated with a sealant to withstand outdoor moisture and features a high accuracy temperature sensor that doesn't need calibration The device can be used to activate programs for controlling temperatures in attics, garages, greenhouses, basements, wine cellars, and coolers The temperature (including outdoor temp) can be displayed on the Touchscreen or mobile device. It can also report, log, alert, or generate an alarm if the temperature reaches freeze conditions or if the temperature goes above the high set point or drops below the low set point programmed in the system. A perfect setting for a variety of small commercial or residential applications This sensor cannot be connected to a zone on an Expansion Enclosure (i.e. Model 17A00) for temperature. Run a 4-conductor wire from the controller location to each Model 31A00-7 For the Lumina Pro, Lumina, OmniPro II, Omni IIe, and Omni LTe home control systems Leviton Part Number: EM317