This product is set to replace the existing zigbee door and window sensor from Sonoff, giving it bigger battery for more battery life (up to 5 years), stronger adhesive to keep on doors and windows, a new case design making it easier to change the battery and a tamper switch to notify you if the sensor is removed from the door.
Purchasing link will be added once the product is released.
UPDATE: unfortunately the released is delayed into 2024. There are some structural issues that need to be reftified before the final product can be released.
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0:00 Intro
0:57 Old and new model
1:24 Design and documentation
2:55 Initial setup
4:26 App view
5:30 Settings
7:10 Scene options
10:46 Final thoughts