1. WIFI remote control 2. Intelligent timing 3. Rotary temperature adjustment 4. Programming time period Low power consumption Manual/Auto/Constant temperature mode 5. Celsius degree ℃ / Fahrenheit degree ℉ conversion Weather/humidity display. Large screen with beautiful appearance. Power failure memory. Automatic screen off. Anti-freezing function. Power supply:3 x alkaline batteries/USB socket (shipped without batteries, without usb cable) Power Consumption:less than equal 1W, Transmission Distance:less than equal 300 meters (measured in the open), RF Radio Frequency:433MHZ Shell material:flame-retardant ABS, protection grade: IP20, LCD color screen display Receiver:load 3A supply voltage: 90V-240VAC Product use:control wall-hung boiler start and stop, can be connected to normally open NO or normally closed NC actuator, can be connected to less than 600W water pump. (Warm tips: connect the water pump can not be connected to the wall-hung boiler), wiring-free installation is convenient, applicable to stronger, the product appearance of the atmosphere of the fine. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Black Material:Flame retardant ABS Package Contents: 1 * thermostat 1 * Receiver 1 * Signal Cable 1 * English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.