The Smartvest wireless opening detector allows for the monitoring of windows and doors and can be conveniently installed without drilling or wiring, thanks to its battery operation. When the battery is low, the Smartvest wireless opening detector automatically notifies the control unit. The free Smartvest app then guides you step by step through the process of replacing the batteries. In combination with the Smartvest wireless socket, smart functions can also be initiated alongside monitoring (e.g., door open, light on). Due to its size, the Smartvest wireless opening detector is completely unobtrusive and blends seamlessly into the room design.