Price: GBP14.95
(as of Dec 15,2025 11:51:08 UTC – Details)
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Top reviews from the United States
Reviewed in the United States on November 15, 2025
Reviewed in the United States on November 15, 2025
Functionally, these sensors are great. Just be aware they’re a bit fragile and really not designed to be removed once installed. The magnet portion, in particular, can crack if you take it off after mounting—I had to repaint my doors and removed three of them, and all three ended up with small cracks. Nothing a little super glue couldn’t fix, but still worth noting.
After reinstalling, the gap between the magnets and the sensor ended up slightly too large, so the sensors occasionally reported the door as open even when it was fully shut. I resolved this by 3D-printing small risers shaped like the original magnet housing, and that fixed the issue.
Despite these quirks, I’m still giving them five stars because I’ve had zero technical issues. They work reliably and do exactly what they should. Just know going in that they aren’t really meant to be reused. You’ve been warned.
Reviewed in the United States on July 14, 2023
I added this to my HomeSeer system using their free Zigbee Plus plugin. The sensor added easily without an issue. HomeSeer displays the contact value (whether the door is open or closed), the battery level, and the link quality. The link quality is handy as this lets you know if it has a good connection to the hub. I use this on my inside garage door. When I come home and open that door, I have an automation event that turns on the hallway lights. I only turn on the lights if I enter the home, not when I leave. I use a motion sensor in the hallway to detect that I am approaching the door from the inside. The automation will not turn on the lights if motion is detected. Pretty neat. I cannot comment on battery life yet, but it's been a few weeks and it still shows 100%. The sensor is activated multiple times a day. They include double sided tape to attach it to the door and the door jamb. Seems like its staying attached well.
Reviewed in the United States on December 10, 2025
These are GREAT sensors so far. Had them installed for about two weeks now and zero issues.
The install and integration to my Smarthings environment was easy. In fact, these were the simplest devices to find and add to the n/w I’ve ever experienced – normally I have to stand on my head, face north and contact some spiritual being to add sensors 😜
One other functional item I’ll note is the distance between the two parts can be fairly large, like over an inch, and still work. There’s an embedded LED in the receiver that lights when the transmitter (magnet) is sensed, which is super helpful when installing and checking functionality.
Anyhow, I’m planning to buy more!
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