PIR motion sensor,Wireless sensor,PIR motion detector wireless infrared detector PIR motion sensor,Wireless sensor ,PIR motion detector Outstanding features:1. ... twice alarm minimum alternation time is 20 second).Sensor: Special made low noise double configuration.Sensitive indicator ... through the curtain defense area, the red LED turns on for 1.5 second and ... line adjusted: (4~8 m, 6~10 m, 9~12m)