Product Features: 1. Memory Function: Memorize all your settings after sudden power-off. When power is on again, you do not need to reset it.   2. Programmable Function: Support 5+2 /6+1 / 7 days Weekly Programmable, six periods programmable controlling temperature setting.  3. Wifi support, APP Remote control by mobile phone. One mobile phone can control one device and also can control multiple devices. With voice control function, compatible with Amazon Alexa and Google Home.  4. Manual or automatic function.  5. Backlight brightness can be adjusted through the APP.  6.Touching keys, tempered glass surface, full screen display.  7.The on-off key has night light indication.  8.Low temperature antifreeze protection.     Product Specifications: Power Supply: 95~240VAC, 50~60HZ.  Load Current: 16A.  Color: white, black (optional).  Display: LCD, touch screen.  Display accuracy: ±1℃.  Sensor: NTC.  Set temperature range: 5~60℃ (max 70℃).  Ambient temperature: 0~95℃.  Power Consumption: <1w.  Running program: Set per 1 week as a cycle( 5+2 or 6+1 or 7).  Installation Box: 86*86mm Square or European 60mm Round Box.  Wire Terminals: Wire 2* 1.5mm2 or 1* 2.5mm2.  Size: 86* 86*40mm / 3.4*3.4*1.6 in.  Protection Class: IP20.  Shell material: PC+ABS (flame retardant).     Package includes: 1 X Thermostat.  1 X 3 meters external sensor.  2 X Screws.  1 X English user manual