Battery-Free Invisible Opening Sensor

The Battery-free Invisible Opening Sensor allows users to monitor the open/closed state of windows and patio doors in real time. It sends information to a user gateway to assist in saving energy and creating scenarios. Key Features: • Battery-free operation with integrated kinetic energy harvester • Suitable for windows and patio doors • Integrated into the window jamb for an invisible installation • IP32 protection rating for weather resistance • RF protocol: Bluetooth • Radio frequency range: 2.4GHz Bluetooth • Operational temperature: -20 to +55°C • Dimensions: 28.3 mm (W) x 120 mm (L) x 9.2 mm (H) • Weight: 97 g • Warranty: 2 years