The Smartest DIY Home Improvements

This ceiling-mounted multi-sensor will detect motion and ambient light in a room or office. Both batter-free and wireless, it features a 360° occupancy sensor with an integrated light sensor 0-512 Lux. It also monitors the charging voltage of it's energy storage.

Ambient light & motion sensors are proven energy savers. When coupled with an EnOcean-enabled receiver, like the E8R-R12BP-1, it can be used to turn light off when no one is occupying that room.