Linkind PIR Motion Sensor, Wireless Motion Detector, Zigbee White, for DIY Use with Linkind Home Security System, Automation with Linkind Smart Zigbee LED Lights, LINKIND Hub Required (NOT Included)

Update: I'm now giving this device five stars, I found how to get the device to detect correctly. With Home assistant, I had to switch from using ZHA to Zigbee2MQTT. Once I moved all my devices over, the motion sensor worked perfectly.It looks like the newer Motion Sensors that have Firmware: 0x51230002 has issues where the sensor gets stuck in Detection mode with home assistant and deCONZ application. In the deCONZ application I can see that Zone status Alarm 2 has its box checked by default, when i move in front of it the Alarm 1 check box gets marked instantly and clears within a minute, but the status never changes from detected to clear. Previous firmware did not have these issue.

Requires hub to operate, and hubs are very unreliable, they keep loosing wifi connectivity for some reason very often, and you will end up power off/on the hubs once for every 2-3 days. After complaining for almost a moth finally they have sent a replacement hub, which worked fine for a couple of months, but now started degrading and disconnecting again.In addition, the services can suddenly go down for a day or longer, thus bringing down any automation you have built using these sensors, which just happened with my system, where Alexa stopped receiving signals from sensors all together.Summary: No support for IFTTT, Alexa skill is very unreliable, hubs keep loosing wifi connectivity.Eventually I decided to go with Lutron. Yes, it is expensive, but it works and does not keep breaking again and again.

These sensors worked well initially. A little cumbersome to set up with an echo 4th gen. Once they were discovered, the first two worked VERY WELL. In fact, they're so sensitive that they were responding as I was approaching the unit from the other side of the wall - pretty impressive and made the automations feel like magic!That is...until I added the 3rd and 4th unit. Each time a new device was added, I had to basically reset and rediscover them all, in the exact order I initially set them up in. This actually caused other devices in the blue mesh network to stop responding as well, which may have been unrelated... It was a huge pain in the ass and I wouldn't recommend these for that reason alone.Unfortunately, it gets worse... After they were all set up and working perfectly, one or more devices would stop reporting motion data and get stuck in an idle state. After the 6th or 7th time resetting all 4 devices, getting them to all work, and then having one fail again, I decided to return them and swap for a cheaper, no-name brand that feels far more cheaply made - but are rock solid dependable...It is worth noting that, while I did not purchase the mini hub (not needed with echo 4,) I also have Linkind contact sensors which all work flawlessly. I've never had issues with them not responding or needing to reset them, so I don't think this is a reflection of the linkind brand - I could be too new to home automation and they just didn't work to my expectations.Gave it 5 starts for battery life since it uses a coin cell (and technically, mine would have lasted WAY longer than expected since they weren't reporting motion data LOL)!

I use it for my kitchen lights with my Hubitat Home Automation System. the Battery is holding up great, the distance is great, i have no complaints keep up the good work LinKind. P.S. I bought your door/window transmitters too, and they work great.

Worked for two days then died. I replaced the battery then it would not detect motion. Took some time to get it to re-pair with the hub in a working state. Then it worked for less than a day and got stuck on "active". I had to re-pair to hub to get it working again, then the battery died again.Now it goes through a battery every three days, sometimes gets stuck on active, and sometimes just stops working but pulling the battery and putting it back in gets it to work again.I contacted the company and it looked like they were going to send me a replacement, but they never did and they stopped responding.Based on other reviews, I suggest staying away from this item. I'm tossing mine at this point.

This review is for the motion sensor. The gear I was trying to integrate this with is Deconz and Conbee II running on a Pi4B with Home Assistant (HassOS). My use case was that I was trying turn on a light when motion was detected in a room and turn it off after a short delay when there was no more motion. The sensor paired immediately with Deconz and showed up in Home Assistant. It also reliably detected initial motion in rooms. The problem was that it wouldn't detect further motion for several minutes...at least five...before resetting itself to be able to detect motion again. This was a major problem because lights would be turned off on people even though they were still in the room. I am confident it was the sensor and not my Node Red code because I was watching it in Deconz to see when it fired. I compared this with the Aqara motion sensors which worked beautifully with my combination of gear. I purchased and tested six sensors and they all behaved the same. You may have different results with different combinations of hardware and software.

3 de 4 que compre se activan solos, siempre lo hacen entre 8 y 9 pm, se activa la alarma si haber movimiento

El diseño de este dispositivo es muy bueno, es un diseño de muy buena calidad, es una lástima que al parecer no es 100% compatible con el echo hub o a lo mejor tuve la mala suerte de que mi dispositivo vino dañado, pero todos los días al rededor de las 6 PM +/-30 min el dispositivo dejaba de detectar movimiento, se quedaba congelado en "movimiento detectado" y así hasta la madrugada del día siguiente, luego todo el día detectaba normal hastas las 6pm +/-30 min del siguiente día, puede que fuera que mi sensor venía fallado... Cuando funcionaba lo hacía de manera perfecta, pero lo malo que no funcionaba todo el tiempo.