Takex Pulnix PA-7030E PUL-PA7030E Passive Infrared Motion Sensor 100' x 6'

all right found a couple of these on eBay these are infrared motion sensing modules you can buy them very inexpensively there maybe three or four dollars including shipping each I got two of them and wouldn't even pay to make something like this for that kind of money but the IR module is right underneath this lens when the infrared module detects something in range one of these adjusts the timeframe of how long it stays activated and the other one is the distance very easy to connect three pins it takes up to 20 volts but I'm running it on six six or twelve actually it works perfect one is the voltage in one is ground and one is the voltage out the voltage out comes out to around roughly three point three three point four volts once this is activated so if something moves in front of this you're going to have roughly three point four volts on the output pin come on for a preset duratio