24.125GHz Microwave Motion Sensor for Automatic Sliding & Swing Doors ARG-102

A high-precision radar motion sensor (Model ARG-102) operating at 24.125 GHz, engineered specifically for the automated control of commercial sliding, swing, and revolving doors. Utilizing advanced Doppler microwave technology, it tracks human and vehicle motion with rapid response times regardless of ambient temperature, wind, or lighting variations. It features dual-voltage low-power compatibility (12V–24V AC/DC), a clean dry contact relay output (COM/NO), and a compact 120×80×50 mm form factor available in matte black and metallic silver finishes to match various architectural storefronts.

Product Features:

• Advanced 24.125GHz Doppler microwave antenna for instant and accurate motion detection.
• Fully adjustable antenna bracket supporting vertical tilt and horizontal rotation.
• Wide operating voltage range supporting 12V to 24V (AC/DC).
• Standard dry contact relay output (COM/NO) compatible with major automatic door controllers.
• Built-in potentiometer for smooth sensitivity and detection range adjustments.
• Flame-retardant industrial ABS plastic housing with multiple color options.

💡 Technology (Simply Explained):

The sensor operates on active microwave radar principles utilizing the physical Doppler effect. The internal transmitting antenna continuously emits high-frequency electromagnetic waves at 24.125 GHz across the entryway. When a person or object enters the detection field, the reflected wave frequency shifts; the internal receiver module captures this change instantly and triggers the relay to send an immediate opening pulse to the door motor controller without mechanical delay.

Orientation & Coverage:

Provides complete flexibility to customize the detection field to match entryway geometry. The internal antenna can be tilted vertically up and down to adjust forward detection depth and rotated horizontally left or right to align coverage directly in front of the door path. This directional tuning effectively filters out lateral cross-traffic in walkways, preventing unnecessary door cycles.

Compatibility:

Fully compatible with all commercial automatic sliding doors, swing doors, revolving doors, and elevator transit gates. Connects directly to the main printed circuit board assembly (PCBD) via standard dry contact trigger terminals (Normally Open - NO).

Load & Power Limits:

Designed strictly for low-voltage signal triggering. The internal relay output handles standard signal loads up to 40V DC at 20mA maximum. Direct connection to mains 220V power or driving high-load electric door motors directly through the sensor terminals is prohibited; it must interface solely with the controller's trigger input.

Practical Applications & Use Cases:

Ideal for commercial glass sliding and swing doors in supermarkets, hospitals, hotel lobbies, airports, banks, and office buildings. Ensures hands-free entry for continuous foot traffic while preserving indoor climate control by keeping doors closed when pedestrian movement is tangential to the entrance.

Automation & Logic Sequences:

Enables seamless integration with Building Management Systems (BMS) and access automation. A single detection trigger can simultaneously initiate door opening, activate entrance lighting, or cycle air curtains in a timed sequence before resetting once the radar zone is vacated.

Technical Specifications:

• Model: ARG-102
• Radar Frequency: 24.125 GHz Microwave
• Supply Voltage: DC 12V-27V / AC 12V-24V
• Output Type: Dry Contact Relay (COM / NO)
• Output Current Capacity: 40V DC (20mA)
• Mounting Height: 2.2m to 3.5m
• Detection Range: 1 to 4.5 Meters (Adjustable)
• Antenna Angle Adjustment: Vertical tilt and horizontal rotation

Physical Specifications:

• Housing Dimensions: 120mm (W) × 80mm (H) × 50mm (D)
• Mounting Hole Distance: 100mm
• Housing Material: Flame-retardant industrial ABS plastic
• Color Options: Matte Silver
• Terminal Interface: Built-in 4-pin JST connector
• Status Indicator: Integrated LED for power and detection status

Package Contents:

• ARG-102 Automatic Door Microwave Radar Sensor.
• 4-wire connection cable with JST connector.
• Surface mounting screw set.
• Installation manual and wiring schematic.

Frequently Asked Questions (FAQs):

Does this sensor support swing doors in addition to sliding doors?

Yes, it supports sliding, swing, and revolving doors due to its adjustable antenna design which allows precise targeting of the door travel path.

How is the 4-wire connection harness wired?

The green and brown wires connect to the power supply (12V-24V AC/DC), while the white and yellow wires connect to the dry contact signal terminals (COM and NO) on the door control board.

Is performance affected by outdoor heat or wind near entrances?

No, 24.125GHz microwave radar operates completely independently of ambient temperature and air currents, offering greater environmental stability than conventional PIR sensors.

Keywords:

Microwave Sensor, ARG102 Radar, Automatic Door Sensor, Sliding Door Opener, Swing Door Sensor, 24GHz Detector, 12V 24V Sensor, Abhir

Installation & Wiring:

1. Open the outer housing and secure the base plate onto the transom centered above the door using the included screws (100mm hole spacing).
2. Connect the 4-pin JST harness into the rear port:

• Green & Brown wires: Power supply lines (12V-24V AC/DC).
• White & Yellow wires: Relay signal leads (COM & NO) to the door controller's open trigger input.

1. Adjust the antenna vertical tilt and horizontal rotation, then turn the sensitivity potentiometer to configure the desired detection zone.
2. Snap the front cover back in place, apply power, and remain outside the detection area for several seconds to allow the unit to complete its automatic calibration.

⚠️ Safety Precautions:

1. Disconnect main power supply before connecting wiring to the door control board.
2. Verify input voltage (12V-24V AC/DC); connecting 220V mains voltage directly to the sensor leads will cause permanent hardware damage.
3. Avoid aiming the radar antenna at continuously vibrating structures or moving plants to eliminate false activations.

Complete Your Setup (Frequently Bought Together):

Helpful Resources & Videos:

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