Single & Dual Channel Vehicle Loop Detector: Adjustable Sensitivity For Parking Gate & Traffic Systems
Product Overview
JUTAI single/dual channel vehicle loop detectors feature adjustable sensitivity, industrial-grade reliability, and seamless integration—tailored for parking gate automation and traffic system management.
Our product line covers:
- Single Channel (LD100 AC/LD102 DC): Basic presence/pulse detection for gates/industrial doors
- Dual Channel (LD200 AC/LD202 DC): Advanced directional sensing + traffic counting for entry/exit systems
All models deliver accurate detection of cars, trucks, motorcycles, and forklifts, with robust performance for indoor/outdoor installations.
Key Features
- Precision Adjustable Sensitivity: Single Channel models offer 16-level sensitivity adjustment; Dual Channel models provide 8-level independent sensitivity per channel
- Configurable Operating Modes: Supports presence, pulse, and auto-reset modes; Dual Channel variants add 3 specialized direction detection modes
- Real-Time Status Monitoring: LED indicators for power, detection status, and fault alerts enable quick troubleshooting
- Industrial-Grade Durability: Weatherproof housing and wide operating temperature range (-40°C to +70°C)
- Easy Integration & Configuration: Manual reset button for configuration changes, compatible with standard parking gate controllers
- Anti-Interference Design: 4-step selectable frequency avoids cross-talk with adjacent loops
Technical Specifications
| Parameter |
Single Channel (LD100 / LD102) |
Dual Channel (LD200 / LD202) |
| Power Supply |
100-240V AC or 12-24V DC |
100-240V AC or 12-24V DC |
| Detection Channels |
1 |
2 Independent Channels |
| Sensitivity Adjustment |
16-level |
8-level per channel |
| Frequency Selection |
4-step (20-80 kHz) |
4-step (20-100 kHz) |
| Relay Outputs |
2 (Presence + Pulse/Fault) |
2 (One per channel: COM + NO) |
| Direction Detection |
Not Available |
Yes (Configurable via DIP switches) |
| Response Time |
10-90 ms |
10-90 ms |
| Operating Temperature |
-40°C to +70°C |
-40°C to +70°C |
| Indicators |
Power LED + Detection LED |
Power LED + CH1/CH2 Detection LEDs |
| Humidity Tolerance |
Up to 95% RH (non-condensing) |
Up to 95% RH (non-condensing) |
Loop Installation Guide
| Loop Perimeter |
Recommended Wire Turns |
| 3-4 meters |
6 turns |
| 4-6 meters |
5 turns |
| 6-10 meters |
4 turns |
| 10-20 meters |
3 turns |
| Over 20 meters |
2 turns |
Ideal Applications
- Single Channel Use Cases: Parking gate automation, industrial roller door activation, warehouse forklift detection, security boom gate control
- Dual Channel Use Cases: Parking gate entry/exit counting systems, traffic system flow monitoring, toll booth vehicle classification, dual-lane parking gate management
Why Choose JUTAI Loop Detectors?
- Over 15 years of specialization in vehicle detection technology
- Complete product range from basic to advanced solutions
- Rigorous quality control and full pre-shipment testing
- Adjustable sensitivity tailored to parking gate and traffic system needs
- All products backed by a 2-year warranty and expert technical support
Selecting the Right Model
- Choose Single Channel detectors for parking gate automation, single-lane access control, or basic vehicle presence detection
- Choose Dual Channel detectors for traffic system counting, parking gate entry/exit management, directional sensing, or dual-lane detection scenarios
Connections & Indicators
Indicators and Switches
- Power LED (RED): Illuminates to indicate "Power ON"
- CH1 Detection LED:
- Steady On: Vehicle detection
- Slow Blinking: Loop short circuit or insufficient twists
- Fast Blinking: Loop open circuit or excessive twists
- CH2 Detection LED:
- Steady On: Vehicle detection
- Slow Blinking: Loop short circuit or insufficient twists
- Fast Blinking: Loop open circuit or excessive twists
Sensitivity Selection
Sensitivity and frequency adjustment is facilitated through 7-way and 10-way dip switch settings. Users can choose from 8 different sensitivity settings by configuring the dip switch positions.
Reset Button Note: The LD-200 must be reset every time a setting change is made to the Dip switches.
Installation Precautions
- Use ferromagnetic wires for the induction coil, with total length up to 500 meters
- Coil cutting size should be rectangle: length 1.0-2.0m, width 0.8-1.2m
- Avoid right angles at corners as much as possible
Application & Working Principle
Entry Process
1. Car enters and presses two loop coils simultaneously
2. Loop Detector triggers UHF reader at entrance
3. UHF reader reads card ID and sends to controller
4. Controller verifies ID validity and opens gate barrier
5. Car enters and barrier arm lowers automatically
6. Single Channel Loop Detector ensures safety and anti-smashing functionality
Exit Process
1. Car passes by inside UHF reader
2. Loop Detector triggers UHF reader to read card
3. Controller verifies ID and opens gate barrier
4. Car exits and barrier arm lowers automatically
5. Single Channel Loop Detector provides safety and anti-smashing functionality
Direction Recognition
The Direction Recognition Function ensures that the double channels loop detector does not trigger the signal again when the car passes another UHF reader, thereby recording only the entry or exit records in the system.
Additional Product Views
Order Now - Elevate Your Parking Gate & Traffic System Performance
Contact us today to discuss your specific parking gate or traffic system needs, request free samples, or get a competitive quotation for bulk orders. JUTAI's adjustable sensitivity loop detectors are engineered to deliver precise, reliable performance - the perfect fit for your parking and traffic management projects.