EDI LMA-1250-LP Low Power Solar Compatible Dual Relay Loop Detector
The EDI LMA-1250-LP is a ultra-low-power DEFLECTOMETER single-channel inductive loop detector used in professional gate, parking, and access-control installations. It connects to a saw-cut or preformed inductive loop in the pavement and monitors changes in loop inductance caused by a vehicle in the detection area. When a vehicle is detected, the detector changes its relay output so the gate operator, barrier gate controller, telephone entry system, or access-control panel can respond according to the way that loop input is programmed. This type of detector is commonly used for free-exit loops, safety/reverse loops, presence loops, hold-open loops, arming loops, and parking control lanes.
This LMA-1250-LP model is the LMA-1250-LP version, with dual programmable relay outputs and 12 VDC or 24 VDC nominal low-current systems. The correct detector is not chosen by brand alone. The installer should match the original detector part number, input voltage, 11-pin socket wiring, relay output requirements, and desired fail-safe or fail-secure behavior. A low-voltage detector should not be placed into a high-voltage socket, and a fail-secure detector should not be substituted for a fail-safe detector unless the system design specifically calls for that behavior.
EDI detectors are commonly selected because they provide practical setup and troubleshooting features for field technicians. Depending on the series, features may include adjustable sensitivity, selectable loop frequency, sensitivity boost, loop fault monitoring, stored fault memory, output delay or extension, and LED indication for power, detect, and fault conditions. Those features help identify common loop problems such as open loops, shorted loops, large inductance changes, crosstalk between nearby loops, incorrect sensitivity settings, or a detector that is being powered from the wrong source.
Compatible With
This detector may be used with compatible vehicle loop systems when the power, socket wiring, output contacts, fail-safe/fail-secure behavior, and controller input requirements match the installation.
- solar powered gate operators with a compatible low-voltage detector input and 11-pin detector socket
- battery powered access-control systems needing low standby current
- EDI LMA-1250-LP style detector sockets
- gate systems requiring dual relay loop outputs with low-current draw
- rural gate entrances and off-grid operators using paved inductive loops
- free-exit, safety, hold-open, arming, or presence loop applications when the power budget supports the detector
Features and Specifications
| Manufacturer | EDI Traffic / Eberle Design Inc. |
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| Product Type | ultra-low-power DEFLECTOMETER single-channel inductive loop detector |
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| Part Number | LMA-1250-LP |
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| Series | LMA-1250-LP |
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| Application | Low-current vehicle detection for solar gate operators, battery-powered access-control systems, rural entrances, and low-power sites where a standard detector's standby draw may be too high. |
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| Channels | Single channel |
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| Relay Output | Dual programmable relay outputs |
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| Voltage | Ultra-low-current 12/24VDC operation; designed for battery and solar powered access-control systems |
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| Fail Behavior | Low-power fail-secure configuration |
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| Connector | 11-pin Molex / Amphenol style detector connector |
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| Loop Inductance Range | 20 to 2500 microhenries on supported loop installations |
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| Setup / Diagnostics | Adjustable sensitivity, loop fault monitoring, fault memory, and frequency control depending on series |
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| Notes | Match voltage, socket pinout, output function, and fail mode before replacing an existing detector |
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Also Known As / Related Part Numbers
Common search references and related EDI detector family numbers include:
- LMA-1250-LP
- LMA1250LP
- LMA 1250 LP
- EDI LMA-1250-LP
- EDI LMA1250LP
- LMA-1250 low power
- LMA-1250 solar compatible
- LMA-1250-LP fail secure
- LMA-1250-LP dual relay
- Eberle Design LMA-1250-LP
- LMA1250-LP - related family reference; verify exact interchange before ordering
- LMA-1800-LP - related family reference; verify exact interchange before ordering
- LMA-1250-LV - related family reference; verify exact interchange before ordering
- LMA-1250-HV - related family reference; verify exact interchange before ordering
- LMH4-11 - related family reference; verify exact interchange before ordering
Technician Note
Use this model only when low operating current is required; performance characteristics are different from the standard LMA-1250. Helpful for solar gate systems where standby current draw affects battery run time. Do not treat the LP model as a direct substitute for standard LMA-1250-LV/HV units without reviewing power budget, output behavior, and detector requirements.
Before Ordering
- Confirm the exact model number printed on the original detector.
- Confirm low-voltage or high-voltage detector input power at the socket.
- Confirm fail-safe or fail-secure operation required by the gate or parking system.
- Confirm whether the installation needs one relay output or dual relay outputs.
- Inspect the loop wiring for open circuits, shorts, water intrusion, damaged lead-in wire, or incorrect loop inductance.
- Confirm the 11-pin socket wiring and operator manual before applying power.
Professional Advisory
Loop detector wiring can affect gate safety, vehicle detection, and automatic gate behavior. Do not bypass monitored safety devices or use a detector to defeat required entrapment protection. If the gate moves unexpectedly, the loop circuit is damaged, or the detector socket voltage is not confirmed, have the system checked by a qualified gate or access-control technician.
Product Questions and Answers
What type of loop detector is the EDI LMA-1250-LP?
The EDI LMA-1250-LP is a ultra-low-power DEFLECTOMETER single-channel inductive loop detector used with a buried inductive loop to detect vehicles for gate, parking, and access-control equipment.
What voltage should be used with the EDI LMA-1250-LP?
The EDI LMA-1250-LP should be powered from a matching detector socket. This model is specified for Ultra-low-current 12/24VDC operation; designed for battery and solar powered access-control systems.
Is the EDI LMA-1250-LP a fail-safe or fail-secure detector?
The EDI LMA-1250-LP is a low-power fail-secure configuration. Match this behavior to the original detector and the gate operator wiring before replacing the module.
Why use the EDI LMA-1250-LP instead of a standard loop detector?
The EDI LMA-1250-LP is intended for low-current applications such as solar or battery powered gate systems where standby current draw matters more than it would on a standard powered operator.
What should be checked before ordering the EDI LMA-1250-LP?
Check the original part number, input voltage, fail-safe or fail-secure behavior, relay output requirements, 11-pin socket wiring, and the gate operator's loop detector instructions.
