WiFi Smart Thermostat Electric Floor Heating Water/Gas Boiler Thermoregulator Smart Temperature Controller Room Thermostat Notice: There is a layer of protective film on the screen, please tear off it when you are ready to use. New Type: MH1823/MH1823S/MH1823L support WIFI (TUYA APP / Smart life APP), can be mounted in EU mounting box. MH1823 type used for electric floor heating, like electric heating cable, electric heating film, electric heating mat and other electric heaters. MH1823S type used for water heating, like electric valve, water heating actuator. MH1823L type used for gas boiler, have two dry contacts. Old Type: MH1822 type used for electric floor heating, like electric heating cable, electric heating film, electric heating mat and other electric heaters. Feature: - Working voltage: AC85~240V 50/60Hz - Accuracy: 1& 8451; - Probe sensor: NTC (10K) 1% @25& 8451; - Max load: 16A(MH1822, MH1823D) / 3A(MH1821, MH1823S, MH1823L) - Working environment temperature: 0~45& 8451; - Range of temperature adjustment: 5~38& 8451;(MH1822),10~30& 8451;(MH1821),5~50& 8451;( NEW MH1823) - Button: Touch key - Output: Switch relay - Running program: Set per 1 week as a cycle - Installation: Wall mounted - Size(mm): 85*85*16 >> Thermostat Functions: 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 Six periods programmable controlling temperature setting, 5+2 programmable. 3.(MH1822, MH1823D) Insert and external two sensors. 3m external sensor cable is included.