5 Pcs PIR Sensor Compatible with HC-SR501 PIR Motion Module for Arduino Raspb...
$13.82
5 Pcs PIR Sensor Compatible with HC-SR501 PIR Motion Module for Arduino Raspberry Pi STM32 (Comes with 2 dedicated cases)
5 Pcs PIR Sensor: When a human body enters the sensing range, the temperature difference between the body and the background causes a voltage change in the pyroelectric device. After amplification and comparison, the voltage signal is output.
Voltage：DC 4.5-20V
Detection Angle:
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