EMX 2305-2 LRS-FP-50 Loop Replacement Vehicle Sensor Flat Pack 50 Foot Lead
This loop replacement vehicle sensor provides reliable three dimensional presence detection without the need for invasive pavement cuts. Designed for above or below ground installation, it detects ferrous vehicles by sensing changes in the Earth’s magnetic field. The flat pack design with a 50 foot lead simplifies installation while the detect on stop function helps ignore cross traffic in tight spaces, making it ideal for access control and parking applications.
- Three dimensional vehicle presence detection using magnetic sensing
- Flat pack design with integrated 50 foot lead for easy installation
- Detect on stop feature ignores moving cross traffic
- Suitable for above ground or below ground mounting
- Compact loop free design reduces installation cost
Utilizes advanced 3-axis magnetoresistive sensing for precise vehicle presence detection.
Flat Pack sensor with 50' lead allows flexible above or below ground installation.
DETECT-ON-STOP™ technology enables detection only when a vehicle is stopped, reducing false triggers from cross traffic.
Compact loop-less design significantly lowers installation time and cost compared to inductive loop systems.
Offers selectable sensitivity on X, Y, and Z axes for customized performance.
Remote control module available for programming and relay output configuration.
Stores ambient background and settings in non-volatile memory for reliable operation after power cycles.
ULTRAMETER™ feature provides visual feedback on sensitivity settings and crosstalk interference.
Environmentally rated up to IP69K for sensor and IP30 for control unit, ensuring durability in harsh conditions.
Compatible with 12–30 VDC and 24 VAC power supplies, with reverse polarity and fuse protection.
Output options include SPDT relay and NPN open collector with ratings up to 1A at 24VDC/120VAC.
Logic interface supports dual relay outputs and a 10-position rotary switch for configuration.
Operating temperature range from -40°F to 180°F supports deployment in extreme environments.
Detect range of up to 5 feet, suitable for a wide range of vehicle sensing applications.
Stand-alone sensor design minimizes complexity and eliminates the need for traditional loop installation.
| MODEL NAME | EMX 2305-2 LRS-FP-50 Loop Replacement Vehicle Sensor - Flat Pack w/ 50' Lead |
| LEAD LENGTH | 50 feet |
| SENSING TECHNOLOGY | 3-axis magnetoresistive |
| AXIS DETECTION | X, Y, Z axes independently selectable |
| INSTALLATION TYPE | Above or below ground |
| DETECTION FEATURE | DETECT-ON-STOP™ (DOS®) |
| DETECTION RANGE | 1.5m (5ft.) |
| PRESENCE DETECTION | Three-dimensional vehicle presence detection |
| OUTPUT TYPE (CONTROL UNIT) | SPDT relay / NPN (open collector) |
| OUTPUT RATING (CONTROL UNIT) | Relay: 1A @ 24VDC–120VAC; NPN: 50 mA (max) |
| POWER SUPPLY (CONTROL UNIT) | 12-30 VDC and 24 VAC |
| CURRENT DRAW (CONTROL UNIT) | 40 mA max |
| HOUSING MATERIAL (CONTROL UNIT) | ABS |
| ENVIRONMENTAL RATING (CONTROL UNIT) | IP30 |
| DIMENSIONS (CONTROL UNIT) | 76mm x 22mm x 70mm |
| OUTPUT TYPE (SENSOR) | NPN (open collector) |
| OUTPUT RATING (SENSOR) | 50 mA |
| CONNECTION TYPE (SENSOR) | 5 conductor direct burial |
| HOUSING MATERIAL (SENSOR) | DB: PVC; FP: Polyamide |
| ENVIRONMENTAL RATING (SENSOR) | IP69K |
| POWER SUPPLY (SENSOR) | 12-30 VDC |
| CURRENT DRAW (SENSOR) | 10 mA max |
| DIMENSIONS (SENSOR) | DB: 102mm x 27mm; FP: 86mm x 21mm x 8mm |
| SENSITIVITY LEVELS | 10 levels: 0-9 |
| AXIS SENSITIVITY | 512 counts/gauss (typical) |
| ENVIRONMENTAL TRACKING | Automatic compensation |
| LOCAL MAGNETIC FIELD NULLING | Averages local field signature in any orientation |
| PULSE / PRESENCE OUTPUT | Selectable pulse or constant presence |
| DETECT-ON-STOP™ DELAY | Requires stop for 1 second (1-2s typical) |
| OPERATING TEMPERATURE | -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) |
| OUTPUT RATINGS (LOGIC INTERFACE) | 1A @ 24 VDC / 120 VAC |
| OPERATING ENVIRONMENT (LOGIC INTERFACE) | -40°C to 82°C, 0–95% RH |
| HOUSING MATERIAL (LOGIC INTERFACE) | ABS |
| ENCLOSURE (LOGIC INTERFACE) | IP30 |
| POWER (LOGIC INTERFACE) | 12-30 VDC and 24 VAC |
| OPERATING CURRENT | 22/35mA (one sensor), 33/60mA (two sensors) |
| DIMENSIONS (LOGIC INTERFACE) | 73mm x 38mm x 78mm |
| CONNECTOR | 11 pin male connector (JEDEC B11-88) |
| PROGRAMMING | Remote control module |
| SETTINGS STORAGE | Non-volatile memory |
| DISPLAY FEATURE | ULTRAMETER™ for sensitivity/crosstalk |
EMX 2305-2 LRS-FP-50 Loop Replacement Vehicle Sensor - Flat Pack w/ 50' Lead from Alfa Iris is an advanced magnetic vehicle detection system designed for reliable presence detection without the need for traditional inductive loops. With a compact, loop-less design and 50-foot lead, it offers seamless installation above or below ground.
Reliable Vehicle Detection with Easy Installation
The LRS-FP-50 uses cutting-edge 3-axis magnetoresistive sensing technology to accurately detect changes in the Earth’s magnetic field caused by vehicles. Its DETECT-ON-STOP™ feature ignores cross traffic by detecting vehicles only when fully stopped—ideal for tight spaces and controlled access points.
- Flat Pack sensor with 50-foot direct burial lead
- Three-dimensional vehicle presence detection (X, Y, Z axis)
- Supports both above-ground and below-ground installation
- Loop-less design reduces installation cost and time
- DETECT-ON-STOP™ filters out cross traffic for accurate detection
Advanced Sensor and Control Unit Features
Engineered for performance and durability, the LRS-FP-50 stores environmental settings in non-volatile memory, includes remote programming capability, and features ULTRAMETER™ for optimal sensitivity adjustments and interference monitoring.
- Standalone sensor with selectable X, Y, Z axis sensitivity
- Remote control module with additional relay contact
- SPDT relay and NPN open collector outputs
- Environmental compensation and magnetic field nulling
- Detection range up to 5 feet
Built to Perform in Harsh Environments
The sensor and control units are housed in IP69K and IP30 rated enclosures, ensuring protection against dust, water, and temperature extremes. This makes it an ideal solution for industrial gates, barrier arms, parking lots, and automated entry systems.
- Operating temperature: -40°F to 180°F (-40°C to 82°C)
- Power supply: 12-30 VDC and 24 VAC
- Sensor housing: Polyamide Flat Pack, PVC Direct Burial
- Reverse polarity and fuse protection built-in
Technical Specifications
- Model: EMX 2305-2 LRS-FP-50
- Sensing Technology: 3-axis magnetoresistive
- Sensitivity: 10 levels (0–9), 512 counts/gauss
- Sensor Output: NPN (open collector), 50 mA max
- Control Output: SPDT relay/NPN, 1A @ 24VDC/120VAC
- Power: 12–30 VDC or 24 VAC
- Dimensions (Sensor): 86mm x 21mm x 8mm (Flat Pack)
- Environmental Rating: IP69K (Sensor), IP30 (Control Unit)
- Installation: Direct burial or surface mount
Related products
SKU:
AVAILABILITY: In stock (1 item)
PRODUCT TYPE: Access Control
VENDOR: EMX
This retro reflective photo eye safety sensor provides dependable obstruction detection for commercial doors, gates, and barrier systems. Its compact housing supports quick installation and reliable outdoor operation with watertight protection. A long detection range, adjustable sensitivity, and clear LED...
SKU:
AVAILABILITY: In stock (1 item)
PRODUCT TYPE: Photoeye Sensors
VENDOR: EMX
The NIR-50 is a long-range retroreflective photoeye designed for reliable entrapment protection on gates, overhead doors, and barrier systems. It features flexible AC and DC voltage compatibility, a compact housing, and dual LED indicators for easy alignment and troubleshooting. With...
SKU:
AVAILABILITY: In stock (1 item)
PRODUCT TYPE: Photoeye Sensors
VENDOR: EMX
This retro reflective photo eye sensor delivers dependable entrapment protection for gates overhead doors and barrier systems. Designed for monitored safety circuits it supports internal 10K resistance and flexible AC or DC power input. Adjustable sensitivity LED alignment indicators and...
SKU:
AVAILABILITY: In stock (1 item)
PRODUCT TYPE: Photoeye Sensors
VENDOR: EMX
This durable steel mounting post is designed to provide a stable and professional installation surface for compatible gate safety and detection devices. Standing two feet tall with a compact square profile, it features a black powder-coated finish for corrosion resistance...
SKU:
AVAILABILITY: In stock (1 item)
PRODUCT TYPE: Photoeye Sensors
VENDOR: EMX
This heavy duty steel protection bollard is designed to safeguard photoelectric sensors from impact damage, vandalism, and harsh weather. Its clean, security style design conceals electronics while blending seamlessly into pedestrian and building environments. The two piece construction allows fast...
