The vehicle detection loop sensor—also known as a loop detector or traffic loop sensor—is a user-friendly, high-performance vehicle sensing solution designed to simplify access control, parking management, and traffic monitoring tasks. Engineered with dual operational modes (Pulse + Presence), hassle-free installation, and a robust 2-year warranty, this device delivers reliable detection of cars, trucks, motorcycles, and commercial vehicles across indoor and outdoor environments.
What makes this loop sensor stand out is its seamless usability: it comes pre-calibrated for most common loop configurations, paired with a clear wiring diagram and intuitive controls that eliminate the need for complex technical expertise. Whether you're setting up a parking lot barrier, residential gate access, or traffic counting system, the easy installation process cuts down on labor time and costs. Complemented by dual working modes—Pulse Mode for trigger-based actions (e.g., gate activation, vehicle counting) and Presence Mode for continuous monitoring (e.g., parking bay occupancy, gate hold-open)—it adapts to diverse application needs without compromising precision.
| Parameter | Specification |
|---|---|
| Product Name | Vehicle Detection Loop Sensor / Loop Detector |
| Model | LD100 (AC Power) / LD102 (DC Power) |
| Power Supply | 100-240V AC (LD100) / 12-24V DC (LD102) |
| Detected Vehicles | Cars, trucks, motorcycles, commercial vehicles, forklifts |
| Operational Modes | Pulse Mode + Presence Mode |
| Frequency Range | 20-80 kHz (4-step selectable) |
| Sensitivity | 16-level adjustable (0.010% to 2.56% DL/L) |
| Response Time | 10-90 ms (on/off) |
| Operating Temperature | -40°C to +70°C |
| Relay Outputs | Presence Relay (SPDT) + Pulse/Fault Relay (SPDT) |
| Status Indicators | Red Power LED + Green Detection LED |
| Reset Function | Manual reset button + configurable auto-reset |
| Humidity Tolerance | Up to 95% RH (non-condensing) |
| Loop Inductance Range | 20-2000 µH |
| Maximum Installation Distance | Up to 30 m (shielded cable recommended for >10 m) |
| Housing Protection | Weatherproof (IP-rated for indoor/outdoor use) |
| Warranty | 2-year manufacturer's warranty |
| Technical Support | 24/7 professional technical assistance |
Designed for simplicity without sacrificing performance, this vehicle detection loop sensor is the ideal choice for anyone seeking a reliable, low-maintenance sensing solution. Its dual modes, easy installation, and 2-year warranty make it suitable for both small-scale residential projects and large commercial/industrial setups. Backed by round-the-clock technical support, it ensures consistent operation and maximizes return on investment for years to come.
DIP 1 and 2: Delay and sensitivity boost
DIP 3 and 4: Relay B output mode pulse presence test
DIP 5: Auto reset 30 min or permanent presence
DIP 6 to 8: Relay A delay 0 to 30 sec
DIP 9 and 10: Frequency selection High Low to avoid interference
| Loop Perimeter | Recommended Turns |
|---|---|
| 3 to 4 m | 6 turns |
| 4 to 6 m | 5 turns |
| 6 to 10 m | 4 turns |
| 10 to 20 m | 3 turns |
| Over 20 m | 2 turns |
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1. DIP 1 & DIP 2 Setting Special Functions
2. DIP 3 & DIP 4 Setting Relay B Output
3. DIP 5 Setting Automatic Reset
4. DIP 6 & DIP 7 & DIP 8 Setting Relay A Delay
5. DIP 9 & DIP 10 Setting Frequency (40 K to 100 KHz)
Our production line ensures efficient mass production, rigorous quality control, and thorough pre-shipment testing to deliver Loop detector products of the utmost perfection.
LD-100: single channel, boxed, 1 type 11pin connects 100-240VAC (EU standard)
LD-102: single channel, boxed, 1 type 11pin connects 12-24VADC (EU standard)
LD-105: single channel, boxed, 2 type 11pin connects 100-240VAC (USA standard)
LD-106: single channel, boxed, 2 type 11pin connects 12-24VADC (USA standard)