JUTAI single and dual channel loop sensors are professional-grade detection devices optimized for parking and traffic management, featuring intuitive DIP switch configuration for rapid setup and customization. Built with industrial reliability, they deliver precise vehicle presence sensing, pulse triggering, and (for dual-channel models) directional detection—seamlessly integrating with parking gates, traffic counters, and access control systems.
Our product range caters to diverse management needs:
- Single Channel (LD100 AC / LD102 DC): Ideal for basic parking gate automation and single-lane traffic sensing, with DIP switch-adjustable sensitivity and operating modes.
- Dual Channel (LD200 AC / LD202 DC): Equipped with DIP switch-configurable direction detection, tailored for parking entry/exit counting and bidirectional traffic flow management.
All sensors reliably detect cars, trucks, motorcycles, and forklifts, maintaining stable performance in indoor/outdoor parking lots, roadways, and high-traffic areas.
- Intuitive DIP Switch Configuration: Adjust sensitivity, operating modes, frequency, and direction detection (dual-channel only) via DIP switches—no complex software, enabling on-site rapid tuning.
- Adjustable Sensitivity via DIP: Single Channel (16-level tuning); Dual Channel (8-level independent adjustment per channel) – DIP switches 6-8 (Single) or S1 D6-8/S2 D3-5 (Dual) set sensitivity (0.015%–0.8% DL/L) to avoid false triggers.
- Multi-Mode DIP Selection: Use DIP switches to choose presence/pulse/auto-reset modes (all models); Dual Channel adds 3 direction detection modes (via S1 D3-5 + S2 D1-2) for traffic flow judgment.
- Frequency Tuning via DIP: 4-step frequency (20–80 kHz Single / 20–100 kHz Dual) set by DIP switches (S1 D9-10 + S2 D6-7) to eliminate cross-talk in dense parking/traffic environments.
- Industrial-Grade Durability: Weatherproof/dustproof housing, -40°C~+70°C operating temperature, 95% non-condensing humidity tolerance—resistant to extreme weather and heavy traffic wear.
- Real-Time Status Alerts: LED indicators for power, detection, and loop faults (short/open circuit), paired with DIP switch-reset functionality for quick troubleshooting.
- Trailer/Heavy Vehicle Adaptation: DIP switch 1 (ON) boosts sensitivity (dual-channel) to prevent misdetection of large vehicles in parking lots or traffic lanes.
- Single Channel Use Cases: Parking gate/boom gate automation, single-lane traffic sensing, industrial parking access control, simple vehicle presence triggering for parking guidance systems.
- Dual Channel Use Cases: Parking entry/exit counting systems, bidirectional traffic flow monitoring, toll booth lane management, parking lot occupancy tracking, multi-lane traffic direction analysis.
- 15+ years of expertise in parking/traffic detection, with DIP switch settings optimized for quick on-site deployment.
- DIP switch-enabled customization eliminates software dependency, reducing setup time for parking/traffic projects.
- Rigorous pre-shipment testing ensures reliability in high-traffic parking lots and road management scenarios.
- OEM/ODM support + standard order flexibility, adapting to specific parking/traffic system requirements.
- 2-year warranty + 24/7 technical support for seamless integration and long-term performance.
- Choose Single Channel for basic parking gate automation or single-lane traffic sensing (DIP-adjustable sensitivity/pulse modes).
- Choose Dual Channel for parking entry/exit counting, direction detection, or dual-lane traffic management (full DIP switch functionality).
Contact us today to request samples, get customized quotes, or consult DIP switch configuration details. JUTAI’s DIP-adjustable loop sensors deliver precise, easy-to-deploy detection for your parking and traffic management projects.
Connections
Indicators and Switches:
- Power LED (RED): Illuminates to indicate "Power ON."
- CH1 Detection LED:
- Steady On: Indicates vehicle detection.
- Slow Blinking: Indicates a loop short circuit or insufficient twists after the loop.
- Fast Blinking: Indicates a loop open circuit or excessive twists after the loop.
- CH2 Detection LED:
- Steady On: Indicates vehicle detection.
- Slow Blinking: Indicates a loop short circuit or insufficient twists after the loop.
- Fast Blinking: Indicates a loop open circuit or excessive twists after the loop.
Sensitivity Selection:
- Sensitivity and frequency adjustment is facilitated through a 7-way dip switch and 10-way dip switch settings.
- Users can choose from 8 different sensitivity settings by configuring the dip switch positions according to the provided tables.
- Dip switches 6, 7, and 8 govern CH1 sensitivity, ranging from 0.8 (least sensitive) to 0.015 (most sensitive).
- Dip switches 3, 4, and 5 control CH2 sensitivity, ranging from 0.8 (least sensitive) to 0.015 (most sensitive).
3. Switch 1=S1 : Channel 1 Loop Function Selection (10 way dip switch)
(1)(Switch 1) DIP 1 & DIP 2 Special Sensitivity Increase For Both Trailer (Both Channels).
(2)(Switch 1=S1) D3, D4, D5 and (Switch 2=S2) D1, D2 Setting Special Functions (Mode1, 2, 3 Direction Detection. Mode 4, 5, 6 Normal mode, two loop detection are separated)
(3)(Switch 1=S1) D6 & D7 & D8 and (Switch 2=S2) D3 & D4 & D5 Setting CH1 and CH2 Sensitivity Selection (Eight Levels Choices).
(4)(Switch 1=S1) D9 & D10 and (Switch2=S2) D6, D7 Setting Frequency (20 K to 100 KHz).
* Reset Button : Please note : The LD-200 must be reset every time a setting change is made to the Dip switches. Installation Precautions and Troubleshooting:
- Coil Cutting Size and Embedding Guidelines are as shown in the diagram on the right.
- It is recommended to use ferromagnetic wires for the induction coil, with a total length of up to 500 meters.
- The cutting size of the coil should be a rectangle with a length of 1.0 to 2.0 meters and a width of 0.8 to 1.2 meters, avoiding right angles at corners as much as possible.
- Recommended installation overview of basic typical coil turns:
When installation, please keep the product plug and socket in the vertical direction
Application
The JUTAI LD200/202 double-channel vehicle loop detector series, equipped with direction recognition function, is ideal for numerous single-channel entry and exit scenarios. When integrated with the JUTAI One door controller (Model: AC-11), JUTAI gate barrier (Model: BR-110), and JUTAI long-range RFID reader (Model: PUHF-9), along with high-temperature resistance loop coils (Model: JTHT-11), it forms a seamless solution for single-channel entry/exit access control systems.
The working principle is as follows:
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Entry Process:
- When a car enters the community or parking lot, the two loop coils are pressed simultaneously.
- The JUTAI Double Channel Loop Detector (LD-200/202) triggers the UHF reader located at the entrance.
- The UHF reader reads the card ID and sends it to the controller (AC-11) via Wiegand output.
- The controller verifies the ID's validity and outputs a relay signal to open the gate barrier.
- The car enters the community or parking lot, and as it passes the barrier gate, the barrier arm lowers automatically.
- The JUTAI Single Channel Loop Detector (LD-100/102) ensures safety and anti-smashing functionality during this process.
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Exit Process:
- When a car exits the community or parking lot, it passes by an inside UHF reader.
- The LD-200/LD-202 triggers the UHF reader, which reads the card and sends the ID to the controller.
- The controller verifies the ID's validity and outputs a relay signal to open the gate barrier for the car to exit.
- As the car passes through the barrier gate, the barrier arm lowers automatically.
- The LD-100/102 provides safety and anti-smashing functionality during this process.
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Direction Recognition:
- The Direction Recognition Function of LD-200/LD-202 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.
The JUTAI LD-200/202 Double Channel Loop Detector can also function as two independent single-channel loop detectors. This configuration is suitable for standard one-in and one-out parking lots, where there is one barrier and one long-range reader at both the entrance and exit.
In this setup, one loop coil is used to trigger the reader and read the card, while the other loop coil is dedicated to the barrier's anti-smashing function. By utilizing the LD-200/202 as two independent loop detectors, there is a potential cost-saving benefit from an economic standpoint. This setup reduces some of the hardware costs associated with using separate detectors for each function.
This functionality is achieved by enabling the Independent Working Mode feature of the LD-200/202, allowing it to operate effectively in this dual capacity.
