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Low Cost PIR Sensor Module (HC-SR501)
- แบรนด์ China รหัสสินค้า: SN-PIR
สินค้าในสต๊อก: 73
Passive Infra-Red (PIR) sensor is a motion detector sensor by measures changes in the infrared levels emitted by surrounding objects. It gives a HIGH signal at the I/O pin when motion is detected. Usually used as a security device in a monitored area (such as a room or hall) to detect the appearance of a human being.
Features: