LRS Vehicle Detector Single Saw Cut Loop Replacement System
The LRS vehicle detector is a compact loop replacement system using advanced 3 axis magnetoresistive sensing to detect vehicles through changes in the earth’s magnetic field. Designed for above or below ground installation, it reduces installation time and cost by eliminating traditional inductive loops. The system provides reliable vehicle presence detection while ignoring unwanted cross traffic in tight spaces using a stop only detection mode. It is ideal for access control, parking, and automated gate applications.
- Single saw cut installation replaces traditional inductive loops
- Three axis sensing improves detection accuracy and stability
- Detect on stop feature ignores cross traffic movement
- Works above or below ground in harsh environments
- Compact design reduces labor and installation costs
Features advanced 3-axis magnetoresistive sensing technology for accurate vehicle presence detection using X, Y, and Z axis measurements.
Includes DETECT-ON-STOP™ (DOS®) functionality to ignore cross traffic, activating detection only when a vehicle comes to a complete stop.
Allows installation above or below ground with reduced installation costs due to compact, loop-less design.
Utilizes the ULTRAMETER™ sensitivity display for quick and precise setup, minimizing crosstalk and optimizing detection.
Offers 10 selectable sensitivity levels and 512 counts/gauss axis sensitivity for customizable detection performance.
Equipped with a non-volatile memory sensor that stores background conditions and configuration settings permanently.
Includes optional Logic Interface for enhanced zone control and directionality with dual relay outputs and easy rotary switch configuration.
Ensures reliable operation in extreme environments with wide operating temperature range from -40°F to 180°F and IP69K sensor housing rating.
Provides versatile output options with SPDT relay and NPN open collector compatible with a variety of gate and door systems.
Sensor comes in flat pack or direct burial formats, both featuring rugged enclosures suited for diverse installation conditions.
Supports remote programming through control modules, enabling simplified installation and maintenance without direct sensor access.
Built with integrated power/fault and detection indicators for immediate visual status monitoring.
Protected by reverse polarity and fuse circuitry to prevent electrical damage and ensure system longevity.
Compact dimensions and lightweight construction ease integration into new or retrofit applications.
Capable of pulse or constant presence detection modes to match operational requirements of different access systems.
| MODEL NAME | LRS Vehicle Detector - Loop Replacement System |
| INSTALLATION TYPE | Single saw cut, above or below ground |
| SENSING TECHNOLOGY | 3-axis magnetoresistive |
| AXIS DETECTION | X, Y, Z (independent selection) |
| FEATURES | DETECT-ON-STOP™, ULTRAMETER™, optional Logic Interface |
| DETECTION RANGE | 1.5m (5ft.) |
| SENSITIVITY LEVELS | 10 levels (0-9) |
| AXIS SENSITIVITY | 512 counts/gauss (typical) |
| ENVIRONMENTAL TRACKING | Automatic compensation |
| LOCAL FIELD NULLING | Averages local field signature in any orientation |
| PULSE/PRESENCE MODE | Relay/NPN can send pulse or constant presence |
| DETECT-ON-STOP™ | Vehicle must stop for at least 1 second (1-2s typical) |
| CONTROL UNIT POWER SUPPLY | 12-30 VDC and 24 VAC |
| CONTROL UNIT CURRENT DRAW | 40 mA max |
| CONTROL UNIT OUTPUTS | SPDT relay/NPN (open collector) |
| OUTPUT RATINGS | Relay: 1A @ 24VDC…120VAC; NPN: 50 mA max |
| CONTROL UNIT DIMENSIONS | 76mm x 22mm x 70mm |
| CONTROL UNIT WEIGHT | 68g |
| CONTROL UNIT HOUSING | ABS, IP30 |
| SENSOR POWER SUPPLY | 12-30 VDC |
| SENSOR CURRENT DRAW | 10 mA max |
| SENSOR OUTPUT | NPN (open collector), 50 mA |
| SENSOR HOUSING | DB: PVC; FP: Polyamide |
| SENSOR RATING | IP69K |
| SENSOR DIMENSIONS | DB: 102mm x 27mm; FP: 86mm x 21mm x 8mm |
| SENSOR WEIGHT | DB: 43g; FP: 23g |
| OPERATING ENVIRONMENT | -40°C to 82°C (-40°F to 180°F) |
| SUPPLY PROTECTION | Reverse polarity and fuse protected |
| LOGIC INTERFACE OUTPUTS | Relay 1: SPDT (form C); Relay 2: SPST (form A) |
| LOGIC INTERFACE RATINGS | 1A @ 24 VDC/120 VAC |
| LOGIC INTERFACE POWER | 12-30 VDC and 24 VAC |
| LOGIC INTERFACE CURRENT | 22/35mA (1 sensor); 33/60mA (2 sensors) |
| LOGIC INTERFACE HOUSING | ABS, IP30 |
| LOGIC INTERFACE DIMENSIONS | 73mm x 38mm x 78mm |
| LOGIC INTERFACE WEIGHT | 113g (0.25 lbs.) |
| CONNECTOR | 11 pin male (JEDEC B11-88) |
| AMBIENT STORAGE | Sensor stores ambient background and settings |
| REMOTE CONTROL | Available for programming and additional relay output |
| AVAILABLE MODELS | Flat Pack or Direct Burial, 50 ft or 100 ft leads, with/without controller |
LRS Vehicle Detector from EMX Industries is a compact and reliable Loop Replacement System that provides advanced 3-axis magnetoresistive vehicle detection. Designed for easy installation with a single saw cut, this system is ideal for replacing traditional loop detectors in tight or hard-to-reach areas. With features like DETECT-ON-STOP™ and ULTRAMETER™ sensitivity display, the LRS offers precise control and improved performance across various environments.
Smart Detection in a Compact Design
Engineered to detect changes in the Earth's magnetic field caused by ferrous objects, the LRS delivers three-dimensional detection across X, Y, and Z axes for enhanced sensitivity. Whether installed above or below ground, the system stores ambient settings in non-volatile memory, ensuring consistent operation. Its unique design eliminates the need for multiple cuts, dramatically reducing installation time and cost.
- Three-axis magnetoresistive vehicle detection
- DETECT-ON-STOP™ feature filters out cross-traffic
- ULTRAMETER™ display for optimal sensitivity tuning
- Supports both flat pack and direct burial sensor models
- Optional logic interface for directional sensing or zone expansion
Reliable and Adaptable for Modern Installations
Operating on 12-30 VDC or 24 VAC, the LRS system integrates easily with access control setups, vehicle gates, and traffic management systems. Its rugged, weather-resistant sensor housings (rated up to IP69K) and reverse polarity/fuse protection ensure long-term reliability in harsh environments. With a detection range of up to 5 feet, this system is well-suited for applications where precision and compact form factor are critical.
- Commercial gate entry systems
- Car washes and vehicle queuing zones
- Parking access and automation setups
- Industrial vehicle detection points
For projects requiring a modern alternative to inductive loop detection, the LRS Vehicle Detector by EMX Industries delivers advanced sensing, durability, and easy installation. Available in multiple configurations through trusted USA access control and safety product distributors.
Technical Specifications
- Sensing Technology: 3-axis magnetoresistive
- Sensitivity: 10 levels, selectable
- Output: SPDT relay / NPN open collector
- Detection Range: Up to 1.5 m (5 ft.)
- Power Supply: 12-30 VDC / 24 VAC
- Sensor Rating: IP69K, suitable for direct burial or flat pack use
- Operating Temperature: -40°C to 82°C (-40°F to 180°F)
- Logic Interface: Optional, with dual relay output and directional control
- Installation: Single saw cut, no loop required
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