PIR Motion Sensor

PIR sensors are used to detect motion from pets/humanoids from about 6 meters away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 2-4 seconds) and adjustable sensitivity.

• High output level 3.3 V and Low output level 0V
• Maximum 110 ° angle sensor
• Maximum sensing distance: 6 meters
• Operating voltage: 4.5-20V
• Quiescent Current :50uA
• Dimensions (approx.): 32 x 24mm

• HC-SR501 Datasheet