THIRDREALITY Zigbee Contact Sensor 4 Pack, Door and Window Monitor, Home Automation,Works with Home Assistant,SmartThings,Aeotec,Homey,Hubitat or Echo Devices with Build-in Zigbee Hub,hub Required

I’ve been using these door/window contact sensors around the house for a few months now, and they’ve been great. I set them up to turn on cupboard lights when doors open, and to automatically turn on the hallway lights when the front door is opened at night. Once paired with my Zigbee setup (I’m running them through Home Assistant), the automations fire reliably and consistently, no lag or missed triggers. Installation was straightforward: the sensors are slim, powered by standard AAA batteries with up to ~2 years of life, and can be mounted with either the included adhesive tape or screws. Once connected they’ve stayed paired without any problems, and using regular batteries (rather than coin cells) makes swapping them out simple when needed. Overall these contact sensors have worked exactly as I’d hoped. They’re reliable, great value, easy to integrate into automations, and now a core part of my smart-home setup.

Nutze die Sensoren in Verbindung mit ioBroker/NodeRed. Funktionieren einwandfrei, unauffällige Optik.

These are great door/window sensors that have been super reliable for me so far. I was tired of a few other brands falling off my Zigbee network, so I went to trusty ThirdReality and haven't been disappointed. They are a bit bigger than alternatives, but that's because they pack a couple of AAA batteries which I expect to last a long time (given their record with other Zigbee devices). It's been several weeks and no battery issues so far; I would guess they'll last months or even years depending on usage. ThirdReality is also a Home Assistant partner, which means they actually test their stuff with Home Assistant and ZHA for their Zigbee stuff. It's perfectly compatible with my Sonoff Zigbee radio, as well as the Home Assistant ZBT-2 I recently switched to. They're a bit on the large size and not particularly pretty, but I don't think you could find a more reliable contact sensor for doors or windows (or drawers, or car chargers, or toilet lids… whatever you freaks are automating!) or a better value anywhere else. If you have the physical space, I'd highly recommend them!

Ottimo articolo perfettamente supportato da Zigbee2MQTT per Home Assistant, il sensore del campo magnetico consente di avere una distanza considerevole tra il sensore ed il magnete, il che lo rende perfetto per finestre e porte dove la chiusura non è a filo. Funziona con batterie AAA rendendolo compatibile con comuni batterie ricaricabili e sembra consumare veramente poca batteria una volta installato. Ha inoltre un led che si accende quando lo stato cambia da aperto a chiuso, per segnalare il rilevamento. Fornito con due batterie alcaline AAA, viti per montatura e nastro biadesivo già correttamente tagliato sulla forma dei due componenti (non applicato, quindi se lo volete montare con le viti non serve rimuovere il nastro adesivo). Possibili miglioramenti: Supporto opzionale di Matter over Thread, evitare le batterie integrate in confezione per un prezzo dell'articolo inferiore (così chi vuole compra e/o usa le ricaricabili risparmiando qualcosina).

The contact sensor basically works just like any other in the market, and it does work fine and no disconnected devices since I started using them before last summer. But I bought this product basically because of the AAA battery. The AAA batteries are much cheaper to run compared to lithium batteries (CR2 / CR123 / CR2032 / CR2025 / CR2045) and the price of the product itself is very reasonable (during a sale). I've yet to see exactly how long the battery lasts but I had one of them outdoor (subject to temperature range from -15 to +30 degrees) and there is no issue so far.