ELECFreaks Octopus PIR sensor Brick

The Octopus PIR sensor Brick is an electronic building block based on AM412 pyroelectric digital smart sensor. It can be used in sensing and detection of human or animal motion, sensing distance is about 4-5 meters. Sensing distance of 4-5 meters; Power supply 5V; Power adjustable, save more energy; Two-way differential high impedance sensor input; Built-in filter, screen the interference by other frequency