This programmable heating special, multi-function, large screen LCD indoor temperature controller, the use of microcomputer control technology, to indoor temperature and set temperature comparison results, through the relay control heating equipment ON/OFF, to achieve the purpose of indoor constant temperature and energy saving. Gentle touching button operation, LCD display indoor temperature, equipment temperature, week, clock, timing switch machine indication and working state indication. The operation is simple and the function is complete. Mobilephone WiFi control. Features: Gentle Touching the button to operate. Control electric ball valve, electric valve, electric heating valve, solenoid valve, electric heating film, carbon crystal, etc. The use of high reliability MCU, strong anti-interference. Through the button to set different working mode Relay output. With the function of temperature calibration. With anti-freezing function. Adopt terminal wiring. Support 5+2 /6+1 / 7 days Weekly Programmable, six periods programmable controlling temperature setting. Large screen LCD display. Memorize all your settings after sudden power-off. When power is on again, you do not need to reset it. Optional double temperature and double control function. Backlight brightness can be adjusted through the APP. Wifi support, APP remote control by mobilephone. One mobilephone can control one device and also can control multiple devices. Specifications: Color: black, white (optional) Type: 16A electric heating, 3A water heating, water and boiler heating (optional) Working voltage: AC90-240V, 50/60Hz Temperature control accuracy: 0.5 Set temperature range: 5 -35 Temperature limit range: 5-99 Self-consumption power: