I'm looking for a very specific kind of "alarm". I was wondering if someone can point me in the right direction.
It would be a portable, wallmounted battery operated laser tripwire alarm that is invisible. I don't want any bells, nor do I want anyone to know they tripped it. Basically I want to record when somebody enters a house or a room. I don't need video.
An internal clock or timestamp is important. So if I'm gone all day but I see it was tripped at 1:00pm, then I know someone was in my house. I already know who it would be, so I don't need a camera or anything more fancy than that. Even if its on the wall, the person won't know what it is. But the light of course needs to be invisible.
What am I looking for?
It would be a portable, wallmounted battery operated laser tripwire alarm that is invisible. I don't want any bells, nor do I want anyone to know they tripped it. Basically I want to record when somebody enters a house or a room. I don't need video.
An internal clock or timestamp is important. So if I'm gone all day but I see it was tripped at 1:00pm, then I know someone was in my house. I already know who it would be, so I don't need a camera or anything more fancy than that. Even if its on the wall, the person won't know what it is. But the light of course needs to be invisible.
What am I looking for?
