Liftmaster Motion Detector MODEL 50HERK

The LiftMaster MODEL 50HERK Motion Detector is a highly adaptable motion sensor designed for precision detection in commercial and industrial settings. Built for advanced access control applications, this detector can be configured to distinguish between vehicle and pedestrian movement or forward and reverse motion—making it an ideal choice for automated gates, barriers, or overhead doors.

Capable of being mounted at heights between 8.2 ft and 23 ft, the sensor offers a maximum detection range of up to 80 ft. Its detection field (20 ft x 16 ft at a 45° angle from a 23 ft height) is adjustable either manually or via remote, allowing for custom installation based on your unique traffic and layout requirements.

The 50HERK features two separate output signals—perfect for systems that require distinct responses based on what type of movement is detected. For optimal performance, the unit requires a 24-volt power supply (not included).

Product Highlights:

• Model: 50HERK

• Detection Modes:

  • Vehicle-only or pedestrian-only

  • Forward vs. reverse movement (two separate outputs)

• Detection Field: Adjustable – 20 ft x 16 ft at 23 ft height, 45° angle

• Mounting Height: 8.2 ft to 23 ft

• Max Detection Range: 80 ft

• Output: Dual-channel output for programmable response

• Power Requirement: 24V power supply (sold separately)

• Programming: Manual or remote-controlled adjustment

Whether you're securing an industrial loading zone or a commercial gate system, the LiftMaster 50HERK Motion Detector offers precision, reliability, and flexible integration with modern access control systems.