will thus detect motion through glass if mounted inside a window?
1253139
Yes, but not very well; it operates by detecting infrared radiation from a warm body (for example), and glass will block much of that unless the radiation comes towards the glass at a pretty direct angle. This thing is weatherproof, so if you can mount it on the other side of the glass you will get better results. I had other issues with the device, though, so I sent it back.
1681999
Yes, the motion detection will work through a window. The camera take images continuously and compares. If sequential images differ, something moved. You will likely want to turn of the night vision feature because the LEDs will reflect off the widow distorting the images.
1692090
Yes, as long as you postion the GPS unit close enough to a window it can detect the satilite signal. Otherwise, the structure you are in will prevent the unit from detecting the signal and will tell you that on the screen.
2061929
Mine is set only 6 feet from the door. I am sure it would work at 20 or more feet from the door. It does not work by detecting movement in a room. You will need to find a fixed location so it can have the door or window you are trying to protect in view. It could even be aimed so you could view multiple door or windows. Once you have it set up it will detect if the door or window frame changes (because it has been opened) and will begin recording.
1266904
I doubt if any IR sensor will work behind glass, frosted or not. The glass itself will put a consistent temperature right in front of the sensor and anyone moving across the room is not going to change the temperature of that glass cover.
839508
This product works using a sonar principle to detect motion. It will not work through glass.
298970
Not really. It needs line of sight. It can go though windows with no issue though.
282643
if your window vibrate (like shaking really hard) then yes it probably will. only i the doesn't shake your window like really hard.but its 10 bucks. try it, maybe you'll like it. although this is a very good product that help prevent people from breaking into your home.
2019921
If the unit currently isn't near a window, the external device will help. I have used the external antenna in two locations -- one with the antenna right at the window, and the second with the antenna outside mounted on the side of the building. Both situations were resolved with the external antenna.
1816938
Yes, camera will work inside as long as no glass is in path of picture...reflection would cause problem.
2198805
It might if the door was jarred or thumped hard enough, but I suppose if they were able to do it gently, then no. Just my guess, haven't tried it personally. :) I've triggered mine mistakenly on occasion by bumping it or hitting it with the dog's fetch toys, but it's smart enough not to sound when the sliding glass doors are opened. Ultimately I think these alarms are designed for sounding upon breakage of the glass, they are definitely a good deterrent in that regard, but for covert entry through doors being opened(or removed) they probably won't fare so well, unless it was done in a forceful enough manner. Hope this info helped!
1876696
Hi it dose not have a motion detection. It is a camera lens what you wire into your monitor.
2202756
It may reflect a glare from the glass or light entering window. Easiest way to do is mount it and check on it throughout day. One thing, it goes through the batteries and delay misses some action.
1643023
It will not go through glass. It detects movement and body heat to activate.
1682002
I am not sure how it detects motion , i think it detects sudden changes in light intensity . I have it mounted in the garage facing garage door and about 18 feet away from it and it was detecting motion through the little garage door glass opening. Motion sensitivity is adjustable .
1123175
Yes. The motion sensors can be paired with a door or window in a room. They won't sound the alarm unless both the door or window and the motion sensor is triggered. Pets & people can move through the motion sensor's view without triggering the alarm until the door or window is opened. Then both are triggered and alarm sounds.
144900
No. The instructions make it clear its only to be used indoors. If you mount it in a window, one side would be exposed to rain, dampness etc and would pose a fire hazard.