Feature: 1. [RF THERMOSTAT KIT] Includes a receiver connected to a gas fired boiler or underfloor water or electric heating system, and a wall mounted controller connected via RF frequency. 2. [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. 3. [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. 4. [HOLIDAY MODE] The thermostat also has holiday mode, allowing you to enjoy a more comfortable temperature during the holiday. 5. [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) Wireless Connection Form: RF. Package List: 1 x Controller1 x Receiver4 x Screw1 x User Manual