M-204GD Unidirectional Microwave Sensor

Uni-directional motion detect microwave radar sensor for automatic door activation
(One direction detect, one way detect)

  • High sensitivity, fast and accurate response.
  • Uni-directional detect approaching movement and ignores the departure
  • Germany 24.125GHZ microwave sensing module
  • Max. mounting height: 4.5m


SKU: M-204GD Category: Tag:


Uni-directional Motion Detect Microwave Radar Sensor For Automatic Doors

Used on various automatic doors for activation, high sensitivity, fast and accurate response. The sensor only detects approaching movement but ignores the departure (One direction detecting). It can effectively prevent both interior and exterior probes from unnecessary secondary sensing, and avoid the misjudgment because of door vibration (Especially on industrial fast door shutting down). All these will cause the door unable to close in time.
Unidirectional Microwave Radar Sensor (Automatic Doors)
(Exterior probe activates the door when pedestrian entering the building from outside, but after passing though the threshold, the interior probe might detect a movement and will give an unnecessary signal to open the door again, it will postpone the close and waste energy)

  • The flexible antenna adjustment on X-Y axis ensures precise sensing zone adjustment.
  • Intelligently optimized detection and control circuit greatly improves the sensitivity and stability of the sensing
  • Germany 24.125GHZ microwave sensing module, which is not affected by environmental factors such as temperature and humidity, working performance is extremely reliable.


  • Power supply: 12V ∽ 30VAC +/- 10% (50HZ ∽ 60HZ)
  • Technology: Microwave doppler radar and microprocessor
  • Transmission frequency: 24.125GHZ
  • Max. mounting height: 4.5m (5m Customizable)
  • Detection range: 4m*2m(At installation height 2.2m)
  • Mounting inclination: Longitudinal 0°~90°, Horizontal -30°~+30°
  • Max. contact voltage: 42V/AC-60V/DC
  • Max. contact current: 1A
  • Wire length: 2.5m
  • Holding time: 0.5 s
  • Min. detecting speed: 5cm/s (along the longitudinal axis of the sensor)
  • Dimension: 120(width) * 80(height) * 50(thickness) mm
  • Shell color: Silver/Black


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