PIR Motion Sensor

Description

It works by detecting a change in temperature that occurs when a warm body moves across the sensor’s field of view,
which causes a change in voltage that triggers a signal. 3-12 V DC 600MA.
It will trigger our sound card as well as our gate controller and arduinos and…and..
This is a great way to have your projects light up when you walk up to them . And have your lights turn off automatically when you leave.
Use this sensor to detect your train as it passes, triggering a crossing gate, Sounds, Lights, etc. Range is 3 to 8 yards.
The sensor will turn on, then automatically turn off 20-30 seconds later.