LED Button WIFI Thermostat Heating For Connection Dry Contact/100% Switch Works With Amazon Alexa,Google Assistant,Yandex Alice The BHT-18 fluctuate has been developed to manage electricunderfloor ,water heating or water/gas boiler system. These unitsare designed to be utilized in commercial, industrial, civil and domesticproperties. Technical DataPower supply: 220VAC (110-240VAC), 24VAC/24VDCCurrent Load: 5A (water heating, waterlgas boiler), 16A (electric heating)Sensor: NTC3950, 10KAccuracy: ±1°CSet Temp. Range: 5-35°CRoom Temp. Range: 5-70°CDisplay Temp. Range: five ~ 70°CAmbient Temp.: 0~ 45°CAmbient Humidity: 5 ~ 95 percent RH (Non Condensing)Storage Temp.:-5~ 45°CPower Consumption: <1. 5WTiming Error: < 1%Shell Material: PC +ABS ( Fireproof)Installation Box: 86 * 86mm Square or European 60mm Round BoxWire Terminals: Wire 2 x 1 mm2 or 1 x 2 mm2Protection Class: IP20Buttons: Capacitive Touch Buttons On Functionality1. Rich operate options, Modbus, WIFI, keycard, etc, to satisfy all your needs;2. Strict temperature leadership accuracy (± 1°C) to supply the heat you want;3. Power off protection, save all of your settings safely;4. Preset adjustment of 5+1+1 mode in a week, programmable environment of 6 timeperiods a day, green energy saving, Less cost, extra intelligent andenvironmental protection;5. Support the advent of product local groups/shares to achieve unlimitedcentralized leadership of the number of products/ multi-terminal control;6. Perfect access: Yandex, Amazon echo, Google Home, full travel newvoice management method; On Appearance 1. LED display, more pleasant interface; LED matrix light, clear-cut display, energysaving, preserve your eyes. Touch buttons to make simple operation. The ultra-thin embedded panel completely matches all kinds of walls; The visiablethickenss above the wall is just 12. Frameless acrylic panel design, uncomplicated and elegant;5. Classic black/white coloration scheme, seamlessly integrated. Compatible with common 86mm sq. cassettes and 60mm Europeancassettes to meet all establish environments;7. Interlock to connect presents you with easy installation.