Feature:1. AC Thermostats for Home: Smart thermostat with 3 types: GA: 5A, water heating; GC: 5A, water/gas boiler; GB: 16A, electric heating. They have with WiFi and without WiFi two options. It's ideal to control electric underfloor, water heating or water/gas boiler system. Widely used in home, commercial, industrial, ect.2. Safe and Durable Material: Digital thermostat made from fire retardant ABS panel and highly transparent acrylic VA display, protect your eyes. IP20 waterproof, resistant to scratches and oil stains. Dynamic colorful background lights.3. Easy to Install and Use: Thermostat for house with convenient buckle installation, no tools required. Large knob with large touch screen, more convenient operation and setting.4. Multiple Programming Mode: Programmable thermostat with samrt modes: manual mode, auto mode, and weekly programming mode.Preset 5+1+1 mode weekly programming setting, 6 time periods can be programmed every day, low cost and eco-friendly.5. High Accuracy and Safety Protection: Strict temperature control accuracy (1C) provides the warmth you need. With power off protection which safely save all settings. High voltage protection and child lock mode.6. APP and Voice Assistant Control: WiFi thermostat can be controlled via smart phone and voice assistant. Support groups and sharing, to achieve unlimited centralized control of the number of thermostat.Specification:Specifications:Color: Black / White (optional)Type: Water heating / Water/gas bolier / Electric heating (optional)Model definition: GA: 5A, water heating; GC: 5A, water/gas boiler; GB: 16A, electric heatingMain Material: ABS + PC(Brushed surface)Voltage: 95~240VAC 50~60HzCurrent: 5A(water heating/water/gas boiler) , 16A(electric heating)Sensor: NCT3950 10KTemperature error: ±1/33.8Time error: <1%Temperature control range: 535/41~95.Normal working environment temperature/humidity: -545, 595%RH (no condensation)Power: <1.5WWaterproof: IP20Size: 86*86mm/3.38*3.38inPackage List:Package List:1 * Thermostat1 * Set of Screw1 * Manual