Note: Touch version does not have a WIFI module ABOUT YOUR THERMOSTATS TECHNICAL DATA Power Supply: 95~240 VAC, 50~60HZCurrent Load: 5A (water heating/water boiler/gas boiler) or 16A (electric heating)Sensor: NTC3950, 10KAccuracy: ±0.5? or ±1?Set Temp. Range: 5-35?Dispaly Temp. Range: 5 ~99?Ambient Temp.:0~45?Ambient Humidity: 5 ~95 % RH (Non Condensing)Storage Temp.:-5 ~ 45?Power Consumption: <1.5WTiming Error: <1%Shell Material: PC +ABS (Fireproof)Installation Box: 86 * 86mm Square or European 60mm Round BoxWire Terminals: Wire 2 x 1.5 mm2 or 1 x 2.5 mm2Protection Class: IP 20Buttons: Capactive Touch Buttons