DRM-01 F&F microwave motion sensor

With presence sensor function.

The microwave motion sensor allows motion detection through wood panels, drywall, glass and plastics.

Operation
The DRMMicrowave Motion Sensor emits and receives high-frequency 5.8 Ghz electromagnetic waves. The sensor detects changes in wave reflection caused by the movement of an object within the detection area. The sensor recognizes the movement of an object to and from the sensor. Movement in the detection area automatically turns on the lighting. From the moment of switching on, continuous motion causes this lighting to be permanently switched on. Only the absence of motion in the detection field triggers the lighting's holding time. The renewed movement in the detection field and its disappearance during the timer will trigger the holding time from the beginning. The nature of the operation allows the DRM to be used as a presence sensor. After the set time, the lighting will be turned off automatically. The motion sensor is equipped with a twilight automatic, preventing the controlled lighting from being switched on during the day. The detection status and readiness to switch on the lighting are activated only after dusk. The activation time of the microwave motion sensor can be adjusted by the user with a potentiometer. In addition, it is possible to adjust the area of the detection field within a radius of 3 ÷ 10 m (for h = 2.5 m) and to adjust the receiver's activation time within the range of 5 s ÷ 12 min. Activation of the receiver is signaled by the illumination of the green LED. The motion sensor can operate indoors. The sensor allows motion detection through wood panels, plasterboard, glass and plastic.
Changes in temperature do not affect motion detection.

NOTE!
The power of microwave radiation is relatively low and is completely safe for humans and animals. Its value is less than 10 mW. In comparison, a microwave oven and a cell phone radiate with a power of about 1000 mW (100 times stronger).