被动红外人体感应传感器具有内置放大器。 Passive infrared human detection sensor with built-in amp.
传感器 PIR（无源红外） 197"（5m）16.4" 聚焦透镜，黑色 圆柱型
得捷:
SENSOR MOTION SPOTDETECT DIG BLK
艾睿:
PIR Sensor Digital 5m 1-CH 3-Pin Carton/Case
Chip1Stop:
PIR Sensor Digital 5m 1-CH 3-Pin Carton/Case
Verical:
PIR Sensor Digital 5m 1-CH 3-Pin Carton/Case
MASTER:
PIR Sensor Digital 5m 1-CH 3-Pin Carton/Case
Electro Sonic:
PIR Sensor Digital 5m 1-CH 3-Pin Carton/Case