Waterproof Triple Beam Alarm Photoelectric Infrared Led Detector Security System, Home Security Alarm Infrared Detector Sensor(ABE-100)

[Music] in this video I'm going to demonstrate how to install these active infrared beams now the beams require a sender and receiver now the challenge is to get them level and this is particularly difficult when the distance is large now in the case that I'm doing now the distance exceeds 50 meters so it does come with this little magnifying glass yeah little binocular which in these four distances is actually a bit useless so this what you're supposed to do is you look through there you line it and you're supposed to see this scar in the little X there but the problem is in the X day it becomes literally three meters at the distance that we were installing it so I'm gonna show you a little bit of a different method and that requires a laser pointer a spirit level and a second person alright so let me just show you the sight now you can see as a pan how far this beam is going to be ins