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BurookHi Norman... I just remembered i didn't let u know.... everything worked out we made both the wired and the remot control opening work... they loved the item (assuming it will hold its own for the next 10 years or so) -
KiranYes I don’t doubt you. Jutai is one of the most confident companies I came across in China
LD-100 LD-102 Single Channel Vehicle Loop Detector for Parking Barrier Gate and Industrial Door
| Place of Origin | China |
|---|---|
| Brand Name | JUTAI |
| Certification | CE |
| Model Number | LD-102 |
| Minimum Order Quantity | 1 |
| Price | Negotiable |
| Packaging Details | Carton Parcking(13.5*8.5*5cm)/0.3kg/unit |
| Delivery Time | 3-5 working days after receipt the payment |
| Payment Terms | T/T, L/C, D/A, D/P, Western Union, Paypal, , MoneyGram, Alipay |
| Supply Ability | 10000pcs/month |
Product Details
| Product Type | Single Channel Vehicle Loop Detector | Detection Principle | Inductive Loop Detection |
|---|---|---|---|
| Channel Type | Single Channel | Power Supply | LD-100: 100–240VAC / LD-102: 12–24V AC/DC |
| Loop Inductance Range | 20–2000μH | Sensitivity | 16 Levels Selectable |
| Sensitivity Range | Highest 0.01% DL/L / Lowest 2.56% DL/L | Response Time | 10–90ms |
| Relay Output | Presence Relay / Pulse Or Fault Relay | Frequency Setting | 4 Selectable Frequency Levels |
| Vehicle Presence Mode | Permanent Or Limited Presence Selectable | ASB Function | Automatic Sensitivity Boost |
| Parameter Setting | DIP Switch Setting | Working Temperature | -40℃ To +70℃ |
| Humidity | 95% Non-Condensing | Certification | CE / FCC |
| Application | Parking Barrier Gate, LPR, Industrial Door, Sliding Gate, Bollards, Traffic Signal, ETC, Weighing System | Warranty | 2 Years |
| Highlight | single channel loop detector,vehicle loop detector for parking,industrial door loop detector |
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Product Description
LD-100 / LD-102
Single Channel Vehicle Loop Detector
1. Product Overview
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Product Name: JUTAI Single Channel Vehicle Loop Detector Applicable Models: LD-100 100–240 VAC | LD-102 12–24 V AC/DC Short Description: LD-100 / LD-102 is a compact single channel inductive loop detector designed for reliable vehicle presence detection in parking barrier gates, industrial doors, LPR lanes, sliding gates, traffic signals, bollards, toll lanes, and weighing systems. It offers broad inductance compatibility, adjustable sensitivity, configurable relay logic, and stable performance in harsh outdoor or industrial environments. · Wide loop inductance range 20–2000 μH for flexible site use · 16 selectable sensitivity levels for motorcycles, cars, buses, and trucks · Selectable response time 10–90 ms for fast control action · Two relay outputs for presence and pulse or fault indication · ASB automatic sensitivity boost supports high-bed vehicles · Strong anti-interference design with 40,000 V lightning protection · No interference to 125 kHz RFID reader and suitable for mixed access systems · Operating temperature -40°C to +70°C with 95% non-condensing humidity tolerance |
Actual Product Appearance |
2. Quick Feature Summary
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20–2000 μH Wide loop inductance range |
16 Levels Sensitivity adjustment |
10–90 ms Selectable response time |
Two Relays Presence and pulse or fault output |
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LD-100 100–240 VAC power supply |
LD-102 12–24 V AC/DC power supply |
2-Year Warranty Long-term support |
40,000 V Lightning protection |
3. Product Images and Details
4. Technical Specifications
| Item | LD-100 | LD-102 | Notes |
| Model | LD-100 | LD-102 | Single channel inductive loop detector |
| Power Supply | 100–240 VAC 48–62 Hz | 12–24 V AC/DC | Choose AC or low-voltage version by project |
| Loop Inductance | 20–2000 μH | 20–2000 μH | Wide self-tuning range |
| Sensitivity | 16 selectable levels | 16 selectable levels | Approx. 0.01% to 2.56% DL/L |
| Response Time | 10–90 ms | 10–90 ms | Selectable according to site requirement |
| Operating Temperature | -40°C to +70°C | -40°C to +70°C | Industrial outdoor use |
| Humidity | 95% non-condensing | 95% non-condensing | Stable in harsh environment |
| Relay Output | Presence relay and pulse or fault relay | Presence relay and pulse or fault relay | Two relay outputs |
| Product Size | 76 × 42 × 110 mm | 76 × 42 × 110 mm | Compact housing |
| Package Size | 136 × 86 × 52 mm | 136 × 86 × 52 mm | Carton packing |
| Net Weight | 195 g | 195 g | Approximate |
| Gross Weight | 300 g | 300 g | Approximate |
| Certification | CE FCC | CE FCC | |
| Warranty | 2 years | 2 years |
5. Model Positioning and Family Reference
This product page focuses on the single channel series. The following reference graphic helps buyers understand the position of LD-100 / LD-102 within the JUTAI loop detector family.
6. Setting and Debugging Content
Below is the complete debugging module reorganized with separate images for each control area, so the product page remains complete and installers can quickly understand each function.
6.1 Wiring and Installation Reference
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LED Indicator Area Observe the POWER and LOOP/FAULT LEDs first during commissioning. They help installers identify whether the detector is powered correctly, whether a vehicle is detected, or whether the loop is in fault condition. |
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Sensitivity Adjustment Use the rotary selector to choose one of 16 sensitivity levels. Higher sensitivity is recommended for motorcycles or small vehicles. Lower sensitivity helps reduce false triggering in noisy environments. |
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DIP Switch Basic Orientation The DIP switch block is the main configuration area. Make sure installers clearly understand the ON/OFF direction before changing any parameter. |
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DIP 2 ASB Automatic Sensitivity Boost Enable ASB when high-bed vehicles such as trucks, buses, and trailers need more stable detection. This function improves detection reliability after the vehicle first enters the loop area. |
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DIP 3 and DIP 4 Entry Exit and Relay Logic These switches are used for relay logic selection related to entry or exit or pulse behavior. Choose the mode that matches barrier, camera, gate, or counting control logic. |
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DIP 5 Vehicle Presence Mode This setting controls the presence hold behavior. It can support continuous presence, fixed hold timing, or extended hold functions according to site requirements. |
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DIP 6 to DIP 8 Relay Output Timing These switches define the output timing options for the presence relay, with multiple selectable delays such as 0, 2, 5, 8, 10, 15, 20, and 30 seconds. |
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DIP 9 and DIP 10 Frequency Setting When multiple loops are installed nearby, select different operating frequencies to reduce crosstalk and electromagnetic interference between adjacent lanes. |
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RESET Button After wiring changes or DIP setting adjustments, press RESET so the detector relearns the loop condition and starts operation with the new configuration. |
7. Application Scenario Module
| Scenario | Use Value |
| Parking Barrier Gate and LPR Lane | Detect approaching vehicles, trigger camera capture, open the barrier, and provide anti-crash protection under the boom arm. |
| Industrial Door and Forklift Detection | Activate high-speed doors when a forklift approaches and hold the door open while the vehicle remains in the loop zone. |
| Residential Community Access | Support vehicle access control for community entrances, including reliable detection of motorcycles and cars. |
| Sliding Gate and Parking Systems | Trigger sliding gates or parking entrance devices while reducing false activation from pedestrians or carts. |
| Automatic Bollards | Lower bollards when authorized vehicles approach and delay re-raising until the vehicle has completely passed. |
| Weighing System | Detect truck arrival on the weighbridge and coordinate weighing logic accurately. |
| Parking Counting with LED Space Display | Work with parking counting systems and LED displays to confirm vehicle passage and update available space data. |
| Traffic Signal and Roadside Control | Provide vehicle presence input for signal request, lane control, or roadside access automation. |
8. What Makes JUTAI Different
· Broader loop inductance range 20–2000 μH than many basic alternatives
· Automatic restart and coil fault function simplify maintenance and reduce downtime
· 16-way sensitivity selection allows more accurate adaptation to motorcycles, cars, and trucks
· No interference to 125 kHz RFID reader makes it suitable for mixed access control projects
· Strong housing with 40,000 V lightning protection improves field reliability
9. Installation Notes
· Cut the loop neatly into the road surface and seal the slot properly after cable installation.
· Use twisted pair feeder cable between the loop and the detector to reduce electromagnetic interference.
· Do not route loop feeder cables together with high-voltage or high-current power cables.
· For adjacent loops or multi-lane projects, select different operating frequencies.
· After changing DIP settings or rewiring, press RESET to relearn the loop condition.
· Increase sensitivity when detecting motorcycles or small vehicles. Use ASB for buses, trucks, and high-chassis vehicles.
10. FAQ
Q: What is the difference between LD-100 and LD-102?
A: LD-100 uses 100–240 VAC power supply, while LD-102 uses 12–24 V AC/DC power supply. Their core detection logic and application fields are the same.
Q: Can this detector be used for barrier gate anti-crash protection?
A: Yes. The presence relay stays active while the vehicle remains on the loop, which helps keep the barrier open and reduces collision risk.
Q: Can it detect motorcycles and small vehicles?
A: Yes. The 16-level sensitivity adjustment allows the installer to raise sensitivity for motorcycles, scooters, and compact vehicles.
Q: Can it detect trucks and trailers?
A: Yes. ASB automatic sensitivity boost improves stability for trucks, buses, and high-bed vehicles.
Q: Is software required for configuration?
A: No. All basic configuration is done directly on the front panel using the rotary sensitivity switch, DIP switches, and RESET button.
Q: Can multiple detectors be installed close together?
A: Yes. Use different operating frequencies for adjacent loops to reduce interference.
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