Power Energy Monitoring Record the daily electricity consumption, keep track of the electricity usage of the water heater, so that the electricity consumption of the electrical appliances can be traced. Inching Timer - You can set the switch operation time on App according to your need (1-60 minutes) , after you touch on the switch by manual touch or on App, the switch will be off automatically.For example, if you set 30 minuts time, so after 30 minutes you touch on the manual switch or on App, then the switch will turn off automatically. Voice Control - Google Assistant- Amazon Echo Alexa APP Remote Control Remote control your water heater / boiler by App, Turn it on in advance, so that you can enjoy a warm shower when you arrive at home. App feedback for ON or OFF - When you touch on App, it will gives you a feedback that it's on or off.- Feedback Function, you can monitor the status of the water heater anywhere Set Sechdule Timer for the Boiler It can turn on/ turn off the switch automatically . Touch panel to turn on/off The panel is glass , waterproof, safe to touch it. Restart Status When you go out, we can set the "Restart Status" of your boiler.(ON, OFF or Remember last status) US Standard 503 Size - Dimensions: 120mm*72mm*33mm- US and Gewiss Switch size, the distance between the screws to fit your wall box is 83.5mm Boiler Switch Installation Method - Please refer to below picture- Neutral wire is required for your boiler.