The body motion sensor can adjust ambient light as you want: when turn to SUN(max), it work in the daytime and at night; when turn to MOON (min), it only work under less than LUX circumstance. The body motion sensor is compact, which is unobtrusive and not occupy much installation space. The body motion sensor can be set according to your desire. The minimum is 5 sec; the maximum is 5 min. The motion sensor can automatically monitor closing body and control the light in your room with 0.6-1.5m/s monitoring speed. The motion sensor switch's sensor distance is up to 8m and sensor angle is 360 degree. The indicator lamp flash one time each 4 seconds after switching on the power., and flash two times per second when receiving the signal. At the same time, it shows the sensor in the normal monitoring conditions., Weight: 0.24691773344 Pounds, Manufacturer: NONDK