Basic functions: storing memory, programming time slots, button control, intelligent timing, color screen LCD display, manual/automatic mold testing Accurate temperature control: 3A water heating/boiler with built-in temperature sensing probe. Memory storage: Don't worry about power outages causing settings data to be lost. Children's lock: keyboard lock effectively and safely prevents children from accidentally operating Product Usage: 3A is suitable for water systems/gas boilers/wall mounted boilers/water pumps. Perfectly suitable for places such as homes, offices, shopping malls, sprinklers, and nursing homes. Power supply voltage: 90V-240V AC maximum power: 4500W 3A with linkage function: The 3A temperature controller has powerful functions and can be used for water heating/gas boilers/wall mounted boilers, without the need to stock multiple models. Temperature sensor: NTC, temperature control accuracy: 1 Display: LCD, temperature setting: 5-60 degrees, self consumption power:Less than 1W Programming period: The temperature controller supports 6 different times per day to temperature settings Doodle APP mobile remote: Download TUya APP from your mobile phone, and all controls are controlled through intelligent mobile control. Convenient and simple, enjoy smart life more Voice control: supports voice assistants for Amazon, Google, Xiaodu, Tmall Genie, and YANDEX Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use type: B: 3A Without WIFI Colour:White Material:PC Package Contents: 1 x Thermostat Controller Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.