Must purchase in Quantities of 10 This 65 degree heating temporary construction thermostat is preset to a non-adjustable temperature. Ideal for saving on energy costs during construction. Patented and manufactured since 1997 A capacitor absorbs arc when the contacts open and close. This eliminates the production of heat which can cause the equipment to short cycle. Plastic cover also prevents short cycling of equipment by slowing the thermostat response time down Bi-metal gold ash contacts Two tests done on the bi-metal component and sorted by temperature at the factory Two more tests done in-house to ensure temperature differential is accurate Approximately 1.5° temperature differential Warranty: 1 year