This wifi module is easy to install on all electric heaters with pilot wire to turn it connected and smart. Thanks to its 6 modes (Comfort, Comfort -1°C, Comfort -2°C, Eco, No Frost, Stop), heating management becomes smart to make energy savings and bring more comfort to the user.      WiFi remote control ( Tuya App)      Compatible with 4 or 6 modes heaters       Easy install at back side of heaters       Weekly programmable ( from app)      Max. 16A       51.5*48.5*33mm dimension      CE, ROHS approved