Dear Home assistant users,
I have a quick question.
I bought a set of ‘motion detectors’ via Aliexpress (please see attachment).
The devices are working well, but I notice that once they have deteced movement, it takes a while (seconds / minutes) before they are working/online’ again.
It almost looks if there is a certain kind of time-out that is causing this.
Does anyone know what the problem could be?
Thank you very much for any answer.
Not sure what you mean with ‘working again’ but it is known that these sensors have different cool-down periods depending on which one you buy. I understood the Ikea one even had 2 minutes (!)
Check this one as 1 example
Motion Sensors Tested and Reviewed! Worst and Best Zigbee PIR - YouTube
I have several of what at least looks like the same device.
Zigbee2mqtt allows setting the cool down to 30, 60 or 120 seconds. I don’t see the cool down setting exposed under ZHA.
A 30 second cool down means the device will show “detected” for at least 30 seonds after any motion is detected. Once the device goes back to “clear” it should immediatley be able to re-detect motion.
Thank you both for helping me. I wasn’t aware that there was a cool-down period applicable for this kind of devices. 
I will close the thread. Thanks again!
