SR312 Mini PIR Motion Sensor 12V – Infrared IR Sensor Module for Arduino, 2.7–12V, 100° Detection, 5m Range, Compact Motion Dete

The AZDelivery SR312 is a miniature smart PIR motion sensor based on passive infrared technology that reliably detects movement. With its compact design (only 30 x 14 x 14 mm), the sensor is ideal for applications with limited space – perfect for Arduino, ESP32, and Raspberry Pi projects as well as smart home and security solutions. The sensor operates with a supply voltage of 2.7 to 12 V DC and has a low power consumption of less than 100 mA. Thanks to its wide detection angle of 100° and a range of up to 5 meters, the motion sensor precisely detects thermal changes in the room. The digital output remains active for approx. 2 seconds after motion detection and triggers repeatedly in case of continuous motion – ideal for automatic lighting control, alarm systems, or presence detection. The SR312 is an alternative to HC-SR501 and AM312 sensors and can be combined with LDR sensors, light barriers, ultrasonic sensors, and other Arduino components. Connection is convenient via standard Dupont cables.