EMX-2301-K LRS FP 50 K Loop Replacement System Vehicle Detector
The LRS Loop Replacement System provides reliable vehicle presence detection using advanced three axis magnetoresistive sensing technology. Designed to replace traditional inductive loops, this system requires only a single saw cut, reducing installation time and cost. It supports both above ground and direct burial installations while delivering accurate detection through X, Y, and Z axis sensing. The integrated Detect On Stop feature ensures vehicles are only detected after a complete stop, effectively ignoring cross traffic in tight areas. With adjustable sensitivity levels, non volatile memory storage, and extended detection range options, this detector is ideal for gated communities, commercial parking facilities, industrial sites, and high security access control applications.
- Single saw cut installation reduces labor and surface damage
- Three axis magnetoresistive sensing for precise vehicle detection
- Detect On Stop ignores cross traffic in confined spaces
- Adjustable sensitivity with visual setup display
- Above ground or direct burial installation options
Utilizes advanced 3-axis magnetoresistive sensing technology to detect changes in the Earth’s magnetic field caused by ferrous vehicles.
Single saw-cut design significantly reduces installation time and cost compared to traditional inductive loop systems.
Features DETECT-ON-STOP™ (DOS®) technology that triggers detection only after a vehicle comes to a complete stop, eliminating cross-traffic interference in tight spaces.
Three independent X, Y, and Z sensing elements enhance detection accuracy for both above-ground and below-ground installations.
Compact, loop-less sensor design minimizes pavement disruption while maintaining reliable vehicle presence detection.
ULTRAMETER™ sensitivity display allows quick, precise setup and helps identify optimal sensitivity and crosstalk conditions.
Offers 10 adjustable sensitivity levels with automatic environmental tracking and local magnetic field nulling for consistent performance.
Provides flexible output options including SPDT relay and NPN (open collector) outputs for seamless system integration.
Supports pulse or constant presence output modes to accommodate various access control and gate automation requirements.
Durable construction with IP69K-rated sensor housing ensures reliable operation in harsh weather and demanding outdoor environments.
Wide operating temperature range of -40°C to 82°C (-40°F to 180°F) ensures dependable performance in extreme climates.
Optional Logic Interface module enables extended detection zones or A-B directional functionality for advanced traffic control applications.
Reverse polarity and fused supply protection circuitry safeguard the system from electrical faults and power issues.
| MODEL NAME | LRS Loop Replacement System Vehicle Detector |
| PRODUCT TYPE | Single Saw Cut Vehicle Detector – Magnetoresistive Loop Replacement System |
| SENSING TECHNOLOGY | 3-Axis Magnetoresistive (X, Y, Z) |
| DETECTION METHOD | Magnetic field disturbance caused by ferrous vehicles |
| INSTALLATION TYPE | Above-ground or below-ground installation |
| SAW CUT REQUIREMENT | Single saw cut installation |
| CROSS TRAFFIC FILTER | DETECT-ON-STOP™ (DOS®) feature |
| DETECT-ON-STOP TIME | Requires vehicle stop for minimum 1 second (1–2s typical) |
| SENSITIVITY LEVELS | 10 levels (0–9) |
| AXIS SELECTION | Selectable X, Y, Z axis independently |
| AXIS SENSITIVITY | 512 counts/gauss (typical) |
| DETECTION RANGE | Up to 1.5 m (5 ft) |
| ENVIRONMENTAL TRACKING | Automatic compensation |
| LOCAL FIELD NULLING | Averages local magnetic field signature in any orientation |
| PULSE/PRESENCE MODE | Selectable pulse or constant presence output |
| CONTROL UNIT OUTPUTS | SPDT Relay / NPN (Open Collector) |
| CONTROL UNIT RELAY RATING | 1A @ 24VDC / 120VAC |
| CONTROL UNIT NPN RATING | 50 mA (max) |
| CONTROL UNIT CONNECTION | 10-position screw terminal |
| CONTROL UNIT HOUSING | ABS |
| CONTROL UNIT RATING | IP30 |
| CONTROL UNIT POWER SUPPLY | 12–30 VDC and 24 VAC |
| CONTROL UNIT CURRENT DRAW | 40 mA max |
| CONTROL UNIT DIMENSIONS | 76 mm x 22 mm x 70 mm (3.0” x 0.9” x 2.75”) |
| CONTROL UNIT WEIGHT | 68 g (0.15 lbs.) |
| SENSOR OUTPUT | NPN (Open Collector) |
| SENSOR OUTPUT RATING | 50 mA |
| SENSOR CONNECTION | 5 conductor direct burial cable |
| SENSOR HOUSING OPTIONS | Direct Burial (PVC) or Flat Pack (Polyamide) |
| SENSOR ENVIRONMENTAL RATING | IP69K |
| SENSOR POWER SUPPLY | 12–30 VDC |
| SENSOR CURRENT DRAW | 10 mA max |
| SENSOR DIMENSIONS (DB) | 102 mm x 27 mm (4.0” x 1.0”) |
| SENSOR DIMENSIONS (FP) | 86 mm x 21 mm x 8 mm (3.4” x 0.9” x 0.3”) |
| SENSOR WEIGHT (DB) | 43 g (0.09 lbs.) |
| SENSOR WEIGHT (FP) | 23 g (0.05 lbs.) |
| OPERATING TEMPERATURE | -40°C to 82°C (-40°F to 180°F) |
| HUMIDITY RANGE | 0–95% relative humidity |
| SUPPLY PROTECTION | Reverse polarity and fuse protected |
| POWER/FAULT INDICATOR | Green LED |
| DETECT INDICATOR | Red LED |
| ULTRAMETER™ DISPLAY | Displays optimum sensitivity and crosstalk interference |
| MEMORY | Non-volatile memory for ambient background and settings |
| REMOTE PROGRAMMING | Remote control module supported |
| OPTIONAL ACCESSORY | Logic Interface for extended detection |
| LOGIC INTERFACE OUTPUTS | Relay 1: SPDT (Form C), Relay 2: SPST (Form A) |
| LOGIC INTERFACE OUTPUT RATING | 1A @ 24 VDC / 120 VAC |
| LOGIC INTERFACE POWER | 12–30 VDC and 24 VAC |
| LOGIC INTERFACE CURRENT (1 SENSOR) | 22 mA standby / 35 mA detect |
| LOGIC INTERFACE CURRENT (2 SENSORS) | 33 mA standby / 60 mA detect |
| LOGIC INTERFACE ENCLOSURE | IP30 ABS Housing |
| LOGIC INTERFACE DIMENSIONS | 73 mm x 38 mm x 78 mm (2.9” x 1.2” x 3.1”) |
| LOGIC INTERFACE WEIGHT | 113 g (0.25 lbs.) |
| CONNECTOR TYPE | 11-pin male connector (JEDEC B11-88) |
| PART NUMBER (FP 50 FT KIT) | EMX-2305-K – LRS-FP-50-K |
| PART NUMBER (FP 100 FT KIT) | EMX-2310-K – LRS-FP-100-K |
| PART NUMBER (DB 50 FT KIT) | EMX-2301-K – LRS-DB-50-K |
| PART NUMBER (DB 100 FT KIT) | EMX-2311-K – LRS-DB-100-K |
| CONTROLLER PART NUMBER | EMX-2303-2 – LRS-C1 |
| LOGIC CONTROLLER PART NUMBER | EMX-2322-2 – LRS-LC |
Loop Replacement System (LRS) Vehicle Detector from EMX Industries Inc. is an advanced single saw-cut vehicle detection system designed to replace traditional inductive loops. Utilizing innovative 3-axis magnetoresistive sensing technology, the LRS detects changes in the Earth’s magnetic field caused by ferrous vehicles, delivering highly accurate presence detection in both above-ground and direct burial installations. Its compact, loop-less design significantly reduces installation time and cost compared to conventional loop systems.
Advanced Detection with DETECT-ON-STOP™ Technology
The LRS features exclusive DETECT-ON-STOP™ (DOS®) technology, allowing detection only after a vehicle has come to a complete stop (1–2 seconds typical). This makes it ideal for tight installations where cross-traffic interference must be ignored. Three independent sensing elements (X, Y, and Z axes) improve sensitivity and reliability, while the integrated ULTRAMETER™ display ensures precise sensitivity adjustments and minimizes crosstalk.
- Single saw-cut installation – above or below ground
- 3-axis magnetoresistive sensing (X, Y, Z selectable independently)
- DETECT-ON-STOP™ technology to ignore cross traffic
- ULTRAMETER™ sensitivity display for optimal setup
- Stand-alone sensor with non-volatile memory storage
- Automatic environmental tracking and magnetic field nulling
- Optional Logic Interface for directional detection or expanded zone
Flexible Integration for Access Control Applications
Designed for access control gates, parking facilities, commercial sites, and secured vehicle entry points, the LRS operates on 12–30 VDC or 24 VAC and offers both relay and NPN (open collector) outputs. The system supports pulse or constant presence output configurations and provides detection ranges up to 1.5 meters (5 feet). With rugged IP-rated sensor protection and wide operating temperature tolerance, the LRS performs reliably in demanding outdoor environments.
- Commercial parking and gated communities
- Industrial and warehouse vehicle access points
- Security barriers and automatic gate systems
- Drive-through and restricted vehicle lanes
The LRS Vehicle Detector offers a cost-effective and modern alternative to traditional loop systems, delivering precise vehicle presence detection with simplified installation and long-term reliability.
Technical Specifications
- Sensing Technology: 3-axis magnetoresistive
- Sensitivity Levels: 10 (0–9)
- Detection Range: Up to 1.5 m (5 ft)
- Detect-On-Stop: 1–2 second stop required
- Outputs: SPDT relay / NPN open collector
- Power Supply: 12–30 VDC or 24 VAC
- Operating Temperature: -40°C to 82°C (-40°F to 180°F)
- Environmental Protection: Sensor IP69K, Controller IP30
- Supply Protection: Reverse polarity and fuse protected
- Controller Dimensions: 76mm x 22mm x 70mm
- Sensor Options: Flat Pack (50 ft / 100 ft lead) or Direct Burial (50 ft / 100 ft lead)
- Optional Accessory: LRS-LC Logic Controller with dual relay outputs
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