SONOFF SNZB-04P Zigbee Door Window Sensor, Send Alert to Your Smartphone for Home Security, Compatible with Alexa/Google Home, SONOFF Zigbee Bridge Required, Batteries Included

This door and window sensor is great, it joined my zigbee network instantly and works through my home assistant. I really like the included tamper (vibration) sensor too so you can set it to notify you if someone or something is fiddling with it. Battery life is excellent with it being zigbee, I have had it a month now and its only down by 1% Ill get a few more of these I think.

Happy with this purchase so far. I sticked it on the bathroom door and it triggers the dehumidifier and the air con as I have no natural ventilation in the bathroom. The Zigbee bridge that I'm using is an AEOTEC USB stick connected to my Raspberry Pi5 server with Home Assistant. I had no issues at all with connectivity - the device was discovered instantly by my network. Good sensitivity, very nice quality of plastics used for making the product and feels durable. Baterry life looks fantastic - after a month of use the battery is still 100%. I hope it will stay like that. Good value for money, and overall a pleasure to use Sonoff products.

Initially very poor connectivity on a couple of sensors ( a temperature sensor and a door opened sensor), with one needing regular restarts. After a lot of fiddling with repeaters in the same room as the sensors, the temperature sensor is working fine with no drop outs. However whatever I try, the door opened sensor still regularly drops out for an hour or so, and then reconnects. At least it does not need restarting. Now all my 6 temperature sensors are working flawlessly, after very attentive support from the seller, I am upping my review to 4 stars. I guess batery powered zigbee devices are very sensitive to the zigbee signal and this may not just be a Sonoff issue.

Great contact sensor, have it set up on downstairs toilet door to toggle lights on/off. Connects to HA without issue like most SONOFF products, and full installation took around 2 minutes. Had doubts as some reviews mentions the size been big, but once installed it doesn't seem big at all.

My prime reason for choosing this device was cost. The zwave equivalent switches are typically at least twice the price. This device paired first time to my fibaro home center 3. One important point, the door and frame I'm using it on are not flush. The door surface sits about 20mm away from the frame but despite this the switch works perfectly.

Much better than previous square model. Excelent intergration Z2M

Works great with home assistant, easy to install, bigger than cheap chinese stuff but better battery

Sadly my item was DOA so it had to be returned.

Ottimo. Perfetto nel cambio stato. Montaggio semplice. Usato con home assistant, tutto funziona perfettamente. Consigliato.

gayet güzel. homeassistant'a da sorunsuz bağladım. malzeme kalitesi çook iyi değil ama önemli de değil.

War schnell und problemlos eingerichtet und funktioniert sehr gut. Wichtige Hinweise zur Anleitung: 1) Es existierte bei mir keine LED. Diesen Punkte kann man beim Einrichten überspringen. 2) Der (kleinere) Magnet funktioniert nicht, wenn man ihn mit der langen Seite zum Sensor ausrichtet. Im Gegensatz zur Anleitung musste ich diesen Magneten mit der kurzen Seite in Richtung des Sensors ausrichten. Nachtrag: Ich habe weitere Sensoren bestellt und habe dort nun die LED (siehe 1) gefunden. Sie leuchtet bei mir aber nur sehr schwach und ist deshalb leicht zu übersehen, wenn die Umgebungshelligkeit zu groß ist.

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