RD79-6M 79GHz Barrier Gate Radar Sensor for Anti-Crush and Trigger Detection IP66 Bluetooth RS485

RD79-6M is a 79GHz millimeter wave radar sensor designed for parking barrier gates, entrance and exit management, parking lots, underground garages and vehicle access control systems. It can be used for both anti-crush protection and trigger detection, helping the barrier gate detect vehicles or pedestrians within the barrier arm zone and control the lifting or lowering action more safely.

Compared with traditional loop detectors or infrared sensors, RD79-6M uses 79GHz LFM-CW radar technology with a 2T4R antenna structure. It provides high distance resolution, accurate target detection and stable operation in outdoor or complex parking environments. The radar can help reduce false triggering and improve barrier gate safety, especially in locations where vehicle flow is frequent and installation space is limited.

The radar supports multiple barrier arm types, including straight arm barriers, folding arm barriers, fence barriers and advertising barriers. It also supports different detection modes, including anti-crush mode, trigger mode and inclined-mount trigger mode. With Bluetooth app configuration and RS485 communication, installers can adjust parameters more conveniently during project commissioning. The PDF shows that the radar can be configured through the GL Control app, including device mode, barrier arm type, arm direction, detection target type, detection distance, background learning, save configuration and restart functions.

• One Device for Anti-Crush and Trigger Detection - RD79-6M integrates anti-crush protection and trigger detection into one radar sensor. It can help protect vehicles and pedestrians under the barrier arm while also providing vehicle trigger detection for barrier gate control.
• 79GHz High Precision Radar Technology - The radar operates at 79-81GHz and uses millimeter wave detection to improve angular resolution and measurement accuracy. The 4cm distance resolution helps detect targets more precisely around the barrier arm.
• Supports Human-Vehicle Separation - The radar supports target type selection, including vehicle detection only and pedestrian plus vehicle detection. This makes it suitable for parking projects with different safety and traffic management requirements.
• Multiple Barrier Arm Compatibility - RD79-6M supports straight arm, folding arm, fence arm and advertising barrier gate applications. Installers can select the barrier arm type in the app according to the actual site.
• Bluetooth App Debugging - The radar can be configured through the GL Control app. Installers can search the RD79-6M device, connect through Bluetooth, enter the password, read configuration, adjust parameters, perform background learning, save configuration and restart the radar.
• Adjustable Detection Range - The app allows users to adjust left distance, right distance, long detection distance and near no-detection distance according to the actual barrier gate scenario. This helps improve anti-impact zone configuration and reduce false detection.
• RS485 Communication and Relay Output - The wiring diagram shows DC power input, RS485 A/B communication, COM and NO output. This makes the radar suitable for barrier gate controllers and parking access control systems.
• IP66 Outdoor Protection - The radar has an IP66 protection rating, PC and aluminum alloy housing, and a working temperature range from -40℃ to +80℃, making it suitable for outdoor parking lots, underground garages and harsh weather environments.

• Parking barrier gates
• Parking lot entrances and exits
• Underground garage access control
• Residential community parking gates
• Commercial building parking systems
• Vehicle entrance management
• Straight arm barrier gates
• Folding arm barrier gates
• Fence barrier gates
• Advertising barrier gates
• Barrier gate anti-crush protection
• Vehicle trigger detection

The radar is installed on the barrier gate cabinet side. According to the installation reference in the manual, the opening hole is Φ17mm, the horizontal distance from the barrier cabinet is about 23-33cm, and the fixed hole distance from the ground varies according to barrier size. The manual also shows product dimensions of 73.5 × 110.9 × 32.8mm.

• Install the radar on the barrier gate cabinet side facing the barrier arm area.
• Keep the radar detection area aligned with the barrier arm protection zone.
• Set the correct barrier arm type and direction in the app.
• Perform background learning after installation and parameter adjustment.
• Keep people and vehicles away from the detection zone during background learning.
• Save configuration after completing all parameter settings.