JUTAI single and dual channel loop detectors are professional-grade
solutions engineered for accurate vehicle presence sensing and
pulse detection, ideal for access control, gate automation, and
traffic management scenarios. With industrial-grade build quality
and flexible configuration, these detectors seamlessly adapt to
indoor/outdoor installations while supporting seamless integration
with gate controllers, traffic counters, and access systems.
Our product lineup covers two core series to meet diverse needs:
- Single Channel (LD100 AC / LD102 DC): Specialized for basic vehicle
presence detection and pulse-triggered actions, perfect for simple
gate and industrial door automation.
- Dual Channel (LD200 AC / LD202 DC): Equipped with advanced
directional sensing and traffic counting capabilities, designed for
entry/exit management, toll plazas, and dual-zone monitoring.
All detectors ensure reliable identification of cars, trucks,
motorcycles, forklifts, and other vehicles, delivering consistent
performance in harsh environmental conditions.
- Adjustable Sensitivity for Precision: Single Channel models offer 16-level sensitivity tuning; Dual
Channel variants provide 8-level independent adjustment per
channel, effectively minimizing false triggers and adapting to
vehicles of all sizes.
- Multi-Mode Operation: Supports presence monitoring (continuous vehicle tracking), pulse
output (one-time trigger actions), and auto-reset functions (all
models); Dual Channel detectors add 3 configurable direction
detection modes for traffic flow analysis.
- Real-Time Status & Fault Alerts: LED indicators clearly display power, detection status, and loop
faults (short/open circuit), enabling rapid troubleshooting and
reducing operational downtime.
- Industrial-Grade Durability: Weatherproof housing, wide operating temperature range (-40°C to
+70°C), and 95% non-condensing humidity tolerance ensure stability
in outdoor parking lots, industrial workshops, and high-traffic
areas.
- Hassle-Free Integration & Setup: Manual reset button confirms configuration changes instantly;
compatible with standard automation equipment, no complex
programming required for deployment.
- Anti-Interference Design: 4-step selectable frequency (20–80 kHz for Single Channel; 20–100
kHz for Dual Channel) eliminates cross-talk with adjacent loops or
electronic devices in dense environments.
- Single Channel Use Cases: Automatic barrier gate operation, industrial roller door
activation, warehouse forklift entry sensing, security boom gate
automation, basic vehicle presence signaling for access points.
- Dual Channel Use Cases: Parking lot entry/exit counting systems, traffic flow monitoring
& directional analysis, toll booth vehicle classification,
dual-lane access control, loading dock management, industrial
traffic coordination.
- 15+ years of specialized experience in vehicle detection
technology, with a focus on presence and pulse detection
reliability.
- Comprehensive product range from basic single-channel solutions to
advanced dual-channel systems for complex scenarios.
- Strict quality control and full pre-shipment testing to ensure
long-term performance in high-demand environments.
- Support for OEM/ODM customization and standard orders, tailored to
specific project requirements.
- All products backed by a 2-year warranty and dedicated technical
support for seamless deployment.
- Choose Single Channel detectors for straightforward vehicle presence sensing and
pulse-triggered automation (e.g., gate opening/closing).
- Choose Dual Channel detectors for directional judgment, traffic counting, or dual-zone
presence/pulse detection (e.g., entry/exit management).
Contact us today to discuss your specific presence/pulse detection
needs, request free samples, or get a competitive quotation for
bulk orders. JUTAI’s single and dual channel loop detectors are
designed to deliver precise, reliable performance for your access
control, gate automation, 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:
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.
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.
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.
