Product Information: About The WarmlyYours TH115AFGA08 SmartStat Dual Voltage Programmable Thermostat 120 Volt amp; 240 Volt Heating Systems The WarmlyYours TH115AFGA08 SmartStat Dual Voltage Programmable Thermostat is designed for use with both 120 volt and 240 volt radiant floor heating systems. The WarmlyYours TH115AFGA08 SmartStat Dual Voltage Programmable Thermostat comes with an infloor sensor as well as a digital display that provides and easy to ready control panel displaying the exact floor temperature. The WarmlyYours TH115AFGA08 SmartStat Dual Voltage Programmable Thermostat also provides a manual setback to a low and high temperature level as well as a builtin electric GFCI. The programming function of the WarmlyYours TH115AFGA08 SmartStat Dual Voltage Programmable Thermostat offers up to 4 different settings per day for each day of the week. For WarmlyYours radiant floor heating systems larger than 240 square feet in size a Master Thermostat with Power Module or a Relay Contractor is required. The WarmlyYours TH115AFGA08 SmartStat Dual Voltage Programmable Thermostat also features an elegant design. As with most WarmlyYours controllers and thermostats the WarmlyYours TH115AFGA08 SmartStat Dual Voltage Programmable Thermostat includes a 3 year warranty. Features:#149; Very Elegant Design#149; For use with 120 volt and 240 volt floor heating systems#149; Infloor sensor that cycles the system to save on energy consumption#149; Digital display indicates exact floor temperature#149; Builtin GFCI safety with test light#149; Simple programming functions for ease of use#149; 3 year warranty Specifications:#149; Part Number: TH115AFGA08 #149; For Use With 120V 240V systems #149; Ground Fault Circuit Interrupter (GFCI) #149; 4 Event Settings Per Day 7 Day A Week Programming #149; CSA Listed