GreenBlue GB478 Wireless Door and Window Sensor with Siren 80dB Magnetic Contact Notifications Opening Detection Automatic Schedules Battery Powered White

Instant Detection - Instantly detects the opening and closing of doors windows cabinets and other accesses so you can always stay informed of activities in the home office or garage. Real-time Notifications - Get instant alerts on your mobile device when a door or window is opened or closed. Ideal for extra control during absence or travel. Adjustable Siren - The integrated siren reaches a volume of up to 80 dB and can be fully adjusted. Choose the desired sound level or turn off the sound for silent monitoring. Flexible Alarm Duration - Set the alert duration from 5 to 180 seconds. Suitable as a short reminder or as a long-term alarm signal for extra security. Smart Automation - Create personalized scenarios and timetables so that the sensor is automatically active when you want, for example, at night or during your absence. Easy Wireless Installation - No cables no drilling. Quickly attach the sensor with the included double-sided tape on doors windows cabinets or drawers. Compact and Energy Efficient - The discreet design blends in with any interior while low power consumption ensures long operating life on standard AAA batteries.