Features [Product Specification] 1.5v Aa Battery X 2, Working Voltage: 230vac 50/60hz, Default Temperature Adjustment Range: 5°C to 35°C, Wireless Connection Type: R [Multi Purpose] This Thermostat Kit Has Two Uses: One for Gas Fired Boilers And Underfloor Heating Systems, And The Other for Floor Electric Heating Systems. [Programmable] The Thermostat Supports Fully Automatic Programs or Manually Sets Weekly Schedules for 6 Plus 1, 5 Plus 2, And 7 Days 6 Times, Providing You With Maximum Convenience In Different Situations. [Holiday Mode] The Thermostat Also Has Holiday Mode, Allowing You to Enjoy A More Comfortable Temperature During The Holiday [Wide Application] This Temperature Controller Can Be Used in Hotels, Villas, Apartments, Office Buildings, Hospitals, Schools, Mall, Sports Venues, Etc. Specification: Item Type: Programmable Thermostat Material: Flame Retardant PC Transmitter: 1.5V AA battery x 2 (shipped without battery) Display Accuracy: 0.5℃ Backlit: White Probe Sensor: NTC (10k) 1% Operating Temperature: 0℃ to 70℃ Default Temperature Adjustment Range: 5℃ to 35℃ Temperature Display Range: 0℃ to 40℃ Contact Capacity: 16A AC250V (floor electric heating system), 5A AC250V (gas fired boiler and floor heating system) Working Voltage: 230Vac 50/60Hz Wireless Connection Form: RF Package List: 1 x Controller 1 x Receiver 4 x Screw 1 x User Manual Package List 1 x Controller 1 x Receiver 4 x Screw 1 x User Manual