Adafruit PIR Motion Sensor

Key Features: Detect motion up to 7 meters away Perfect for Raspberry Pi or Arduino Projects Easy to use Requires soldering of header pins PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 2-4 seconds), adjustable sensitivity and we include a 1 foot (30 cm) cable with a socket so you can easily reposition the sensor or mount it using the two drills on either side. Runs on 5V-16V power (if you need to run it off of 3V you can do that by bypassing the regulator, but that means doing a bit of soldering). Digital signal output is 3.3V high/low. Sensing range is about 7 meters (120 degree cone) There are many tutorial available on Adafruit's website for these sensors!Item SpecificsPower: 5v-16vDigital Signal output: 3.3v high/low.Sensing range: 7 metersAdjustable Delay timing: 2-4 seconds