High sensitivity PIR (Passive Infra Red) motion sensor. The main element of the sensor is an infrared detector, which measures the temperature very precisely, and each change of it to a lower or higher value causes its activation. It is used in the construction of alarm systems, automatic lighting, ventilation, sound signal and many others. Features: Range up to 7m Small dimensions Technical data: Power Supply 5V-20V Detection range up to 7m Detection angle <100 degrees Output voltage: 0V-3V Working temperature -15 C - 70 C Dimensions 33mm x 24mm x 26mm https://elecena.pl/product/22604994/hc-sr501-motion-detector-module-pir-sensor-arduino 2023-02-22 https://elecena.pl/product/22604994/hc-sr501-motion-detector-module-pir-sensor-arduino 2025-10-29