JUJIANG JS-DG
JUJIANG JS-DG Universal Vehicle Sensor Instruction Manual
For Automatic Gate Opener Systems
1. Product Overview
The JUJIANG JS-DG Universal Vehicle Sensor is designed to provide automatic gate opening functionality for various gate opener systems. It detects vehicle motion within its magnetic field, enabling hands-free exit from your property.
- Automatic Sensing: Detects vehicles in motion within a magnetic field range of 2 to 12 feet, triggering the gate to open.
- Versatile Compatibility: Compatible with JUJIANG automatic gate openers and most third-party brands such as Mighty Mule, Ghost Controls, and LiftMaster. Supports 12-24VDC or 12-24VAC accessory power and Normal Open & Dry contact signal input.
- Smart Design: Utilizes changes in the earth's magnetic field caused by metal mass movements. Features an adjustable sensitivity range from 2 to 12 feet via a knob. Includes a cable gland for water ingress prevention and cable protection.

Image 1.1: The JUJIANG JS-DG Vehicle Sensor Exit Wand automatically opens your gate when vehicle motion is detected.
2. Package Contents
Verify that all components are present in the package:

Image 2.1: JS-DG Parts List.
- 1 x Wand Sensor with 50ft (15m) 5-Core Cable
- 1 x Range Adjustment Board
- 1 x User Manual
3. Installation Guide
Proper installation is crucial for optimal performance. Follow these steps carefully:
3.1 Site Preparation
- Install the wand on the same side of your gate as the control box.
- Position the wand at least 25 feet away from the gate for optimal performance. The recommended installation distance is 13-45 feet from the gate.
- Bury the wand 1 inch deep into the ground.
- Ensure the wand is buried 2 feet from the driveway edge.
- No earth grounding is required for this installation.

Image 3.1: Recommended installation parameters for the JS-DG sensor.
3.2 Wiring Instructions
Connect the Driveway Gate Exit Wand Sensor directly to the control board of your gate operator. Refer to the diagrams below for common wiring configurations.

Image 3.2: Wiring diagrams for various gate opener systems.
- Ensure the gate operator supports 12-24VDC or 12-24VAC accessory power and Normal Open & Dry contact signal input.
- Consult your gate opener's manual for specific terminal labels if they differ from the diagrams.
4. Operating Instructions
The JS-DG sensor operates by detecting changes in the earth's magnetic field. Its sensitivity can be adjusted to suit your specific needs.
4.1 Sensitivity Adjustment
The sensitivity of the magnetic field detection can be adjusted using the knob on the Range Adjustment Board. This allows you to customize the detection range from 2 to 12 feet.
- Turn the knob clockwise to increase sensitivity and detection range.
- Turn the knob counter-clockwise to decrease sensitivity and detection range.
- Adjust the sensitivity to prevent false detections from smaller objects like lawnmowers, while ensuring reliable detection of vehicles.

Image 4.1: Adjustable sensing range to prevent false detections.

Image 4.2: Range Adjustment Board.
4.2 Vehicle Detection
The sensor is designed to detect various types of vehicles:

Image 4.3: Detectable Vehicles (Trucks, Cars, Motorcycles).
- Higher sensitivity is observed with larger vehicles or increased driving speeds.
5. Maintenance
The JUJIANG JS-DG vehicle sensor is designed for durability and minimal maintenance. Follow these guidelines to ensure long-term performance:
- Cable Integrity: Periodically inspect the exposed portions of the 50ft cable for any signs of damage, wear, or rodent activity. Ensure the cable gland remains secure to prevent water ingress.
- Environmental Protection: The wand is designed to be buried underground and is weather-resistant. Ensure the burial depth and distance from the driveway edge are maintained to protect it from surface damage.
- Sensitivity Check: If you notice changes in detection performance, re-evaluate the sensitivity setting using the adjustment knob on the Range Adjustment Board.
- Cleanliness: Keep the area around the buried wand clear of large metal debris or objects that could interfere with its magnetic field detection.

Image 5.1: Cable gland for water ingress prevention.
6. Troubleshooting
If you encounter issues with your JUJIANG JS-DG vehicle sensor, refer to the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Gate does not open when vehicle approaches. |
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| Gate opens unexpectedly (false sensing). |
|
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| Intermittent operation. |
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7. Specifications
| Feature | Detail |
|---|---|
| Model | JS-DG |
| Detection Method | Magnetic Field Sensing |
| Sensing Range | Adjustable from 2 to 12 feet |
| Cable Length | 50 feet (15 meters) |
| Cable Type | 5-Core, Weather-Resistant |
| Compatibility | JUJIANG, Mighty Mule, Ghost Controls, LiftMaster, and other 12-24VDC/VAC gate operators with Normal Open & Dry contact signal input. |
| Power Requirement | 12-24VDC or 12-24VAC (from gate opener control board) |
| Item Weight | 5.44 pounds |
| Product Dimensions | 7 x 4 x 17 inches |
| Color | Black |
8. Warranty and Customer Support
JUJIANG is committed to providing high-quality products and excellent customer service.
- Warranty: This product comes with a 12-month warranty from the date of purchase.
- Returns & Exchanges: We offer a 30-day worry-free exchange and return policy.
- Technical Support: Lifetime technical support is available for all JUJIANG products.
If you have any questions, require assistance with installation, or need troubleshooting help, please do not hesitate to contact JUJIANG customer service. Our specialists are available to provide professional and timely solutions.
For contact information, please refer to the official JUJIANG website or the contact details provided with your purchase documentation.
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