I have had a couple of motion detectors in my cabin and initially I was getting false alarms which I think was due to the summer heat. I moved them to the lower level which is cooler and I haven't had an alarm go off until today. Can the cold temperatures trigger the alarm also?
IMO, not really. My understanding of the operation of infrared (IIRC) motion detectors is that they detect a CHANGE in temperature between the inidividual windows molded into the lens. (Imagine each window as a "laser pointer" / spoke reaching out at a slightly different angle / azimuth.)
...Is there a motion sensor that is not affected by light or temperature?
Based on them being infrared, I'd say NO on the temperature question.
... For me, living hours away from the cabin, it is ridiculous to be getting false alarms. Now, I have to try to get in touch with a neighbor to check the place out again and it is like crying wolf. Would have never ordered this system if I had only known. You need a motion sensor that is more reliable and can be plugged into an outlet.
When did you purchase this equipment?
Read (this snipet of) what another user,
tom j, recently had to say:
...Out of this same batch of 8 after getting a few false alarms I placed a few that were setup in the 1 movement mode in an empty room in the back of the house along with my backup console and closed the door I made sure that it wasen't pointing toward any windows or heating source and they all tripped within a few months most well within 4 weeks! The PMS01 (Pro versions) are much better but there again you still have the problem of false alarms in the 1 movement mode. Maybe if enough of us complain they will come up with a better design...
Reference: MS10A Motion Detector Junk??I would suggest contacting X10 and asking for replacements. If indeed there was a BAD BATCH recently, more folks will chime in with their experiences.
I've used the DS7000 system for many years. And before that, the X10 beige box system without dialer sold by Radio Shack. I still have two SP554 Motion Detectors (9V Battery) neither of which ever falsed and I have two MS10A Motion Detectors ( 4 AA Batteries) from years ago that have never falsed. BUT, I did purchase four new MS10As this past June (4-for-1 Sale) and they're all still in their boxes. I'll power one up, put it in a non-traffic area and see what happens.
P.S. I'm going to edit your thread's title to include "MS10A" for the SEARCH Engine...