NEW PRODUCT – PIR motion sensor with cable! This is now back in stock and comes with a cable! 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 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 3.3-6V. Digital signal output is high/low. For a full tutorial with wiring diagrams, code examples and project ideas, PIR sensor tutorial page!