
Shelly Blu ZB Door/Window contact sensor, white
- Detects open and closed status of hatches, lockers or doors in real time.
- Measures tilt angle, useful for tilt-and-turn hatches and windows.
- Includes a light sensor that measures ambient brightness.
- Uses AES encryption (CCM mode) for secure wireless communication.
- Runs on the included 3 V CR2032 battery for up to 5 years.
Fit this contact sensor to a hatch, locker or companionway to know instantly when it is opened or closed. It runs on Bluetooth or Zigbee, works with any Wi-Fi/Bluetooth boat network and needs no vendor hub, so it slots straight into Schooner OS or another Bluetooth-capable onboard system. Battery powered, it is well suited to unheated boats laid up over the Nordic winter where mains power is not available.
- Detects open/closed status in real time.
- Measures tilt angle, useful for tilt-and-turn hatches.
- Built-in light sensor reads ambient brightness.
- Battery life up to 5 years on the included 3 V CR2032 cell.
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