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Sonoff
Sonoff SNZB-04P Zigbee Door & Window Sensor
Zigbee2MQTT / ZHALocal control
- Zigbee
Verified July 2026
The cheapest contact sensor we would actually fit to every window: smaller than the old SNZB-04, a proper CR2032 you can buy anywhere, and a tamper alert the Aqara P2 lacks at this price. Pairs directly with Zigbee2MQTT or ZHA — ignore the 'Sonoff bridge required' box copy.
Specs
- size
- Compact, surface-mount with adhesive
- power
- CR2032
- extras
- Tamper alert
- sensor type
- Contact (door/window)
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