Home/STEM/Sensors & Modules/HC-SR501 PIR Motion Sensor HC-SR501 PIR Motion Sensor HC-SR501 PIR Motion Sensor Operating Voltage: DC4.5V to 20V Output Voltage: High 3.3V/Low 0V Size: 24mm x 32mm Weight: 7.3g Category: Sensors & Modules Related products HC-SR04 Ultrasonic Sensor ModuleSensors & Modules Read more