SONOFFSNZB-04 ZigBee Wireless Door and Window Sensor 2-Pack, Burglar Alarm for Home Security, Compatible with Alexa Google Home, SONOFF Zigbee Bridge Required

I'm using my door sensors in the smartthings app for a routine. Our master bedroom is upstairs, i hooked up a z-wave 4 channel relay and wired up LED's behind the relays. Each of the 4 relays connect to a different colored LED which is housed in a small bezel. this is all neatly packaged behind our TV with the LED's at the top. When a door is opened, we simply get a light notification. So if we're watching TV, we know when any of the doors are opened.

I had a bad luck with these sensors, from 4 that I recently bought 3 of them got disconnected from ZigBee controller within three weeks of use, battery seemed to be the culprit in despite that they tested ok wit a multimeter. After replacing the battery it had to be removed from the Home Assistant configuration to be able to be discovered and connected again. The adhesive pad to hold them seems to be old because two of the sensors felt to the ground within two weeks after installation. I had several Sonoff products in the past, but I'm quite disappointed with this one.Update: The 4th. of these sensors now failed to connect too, and two of the ones that I replaced the battery now are giving wrong status. They are unreliable for an alarm system, I'm going to replace them with a better quality ones and not buying this sensors again, Lowering my review from 3 to 1 star.

Hello, i have just opened the box, it feels a good quality, hope works fine too!

Bought a two pack and had no issues getting the 1st one paired into home assistant. The 2nd one seems to be defective. When a removed the back to take out the battery insulator. The whole circuit board flew out. In order for home assistant to see the sensor it had to be right next to the hub. It does not register open/closures. The battery status says 68 % with the original battery and the same thing with a new one. Going to need to reach out to their support for a replacement.

Very easy to install and set up, get push notifications sent to your phone when a door or window opens. About the only thing missing is an option to let you know if a door or window has been left open after a certain amount of time has passed. The battery life seems to depend on how many times the door is opened or closed the more the door or window is opened, the shorter the battery life, which makes sense.

2 stars because it technically *could* work if you have a door or window that aligns perfectly with no offset (no trim) and has a gap of less than 0.3" / 8mm - i.e. no real door or window in a normal house.Instructions indicate maximum sensor distance is 10mm (0.393"), but even with perfect alignment on a flat table, it only registers as closed at about 8mm (0.31" - measured with a calipers), and if there is any offset from trim around the door, it doesn't seem to work at any distance (needs to be basically touching). So, for most/all practical applications, the sensor doesn't work, or would have to hang way off the side of door trim and/or need extra shims to align the sensor exactly.A more minor gripe is that the pairing instructions are not right. Instructions say to start pairing on the app, hold the button down for 5 seconds and then wait for pairing to complete. This did not work. To get it to pair, I had to hold the button down for about 20-30 seconds until it registered on the app, then it paired. I'm using a Sonoff brand Zigbee USB adapter which has worked fine for other devices, so it seems to be just this sensor with the issue.Returning and will not be buying this or anything else from Sonoff again.

Not connecting, very difficult to configure and not straight forward to use. disappointed

Used with Hubitat, added easily, but then both of them used the battery within 1 week and had to be replaced. Cover is very difficult to open to replace the battery. One of the sensors had to have the battery replaced yet again after another few days. They disconnect and stop communicating randomly with no changes to Hubitat config, all other devices in the network keep working fine. Skip this one and find another.

El sensor de puertas y ventanas no es confiable pues aunque se encuentren sus dos partes juntas es decir cerrado en la aplicación te indica que está abierto, otro gran problema es que este sensor no es compatible con Alexa.Le doy dos estrellas porque es fácil de emparejar con el hub de Sonoff y la aplicación eWeLinkSin embargo yo lo devolví.

O produto é essencial pra segurança de uma residência. Com muita facilidade.

O sensor entra no modo de pareamento, mas não sincroniza com o aplicativo eWeLink. Várias tentativas realizadas, sem sucesso.

Muito instável, perde sinal toda hora. Pra umSistema de segurança não é nada confiável

Quer perder muito tempo e passar raiva? adquira esse pedaço de plástico inútil e boa sorte ao tentar parear entre diversos apps.