Does anyone have experience with replacing the batteries in the IQ Motion Sensor (QS1231-840) with a power supply adapter (see Lenink AC Power Supply Adapter for AAA Battery on Amazon). I’ve replaced the batteries for two of the motion sensors and it works fine for one of them. The other seems to throw an alarm when arming away and in non-armed status appears to be blinking every 10-15 seconds. The power supply is stable at 6.1V. I realize that this may not be a supported use of the sensors, but it seems straightforward enough to try to resolve the recurring battery replacement.
In short I do not recommend doing this. I would only use the exact battery specs recommended by the manufacturer. However I am curious about how it is working for you.
The other seems to throw an alarm when arming away and in non-armed status appears to be blinking every 10-15 seconds. The power supply is stable at 6.1V.
The IQ Motion detector uses 2 alkaline AAA batteries. Voltage is 3VDC total end to end. 6VDC is going to be problematic.
It looks like they do sell different versions designed to replace different numbers of batteries, you would need to use a 3V version to match the detector requirement.
The Lenink adapter you referred to looks to be about $12 - $15 on Amazon.
A 20 Pack of Alkaline batteries on Amazon is about the same $12 cost.
20 AAA batteries will on average run an IQ motion detector for 30-50 years.
I realize that the goal may just be to avoid the management of batteries altogether, but there are some additional potential downsides, and perhaps different solutions. Are you running power cables to a centralized location for those detectors or are they plugged in somewhere nearby the motion detector?
One additional consideration is that the motion detector is designed for battery usage and will still operate with the same power saving features regardless of being plugged in via the adapter.