Overview
The FR LPM 10A is a high-sensitivity wire tracking system consisting of a Tone Generator (Transmitter) and a Sensor Probe (Receiver). By injecting a unique digital signal into a wire, the receiver allows you to “hear” the location of that specific cable even if it is buried deep inside a wall or hidden among hundreds of other lines. It is an indispensable tool for network engineers, electricians, and automotive technicians.
Key Features
Dual-Mode Tracking: Specifically designed for RJ45 (Ethernet) and RJ11 (Telephone) lines, but works on any metal wire using the included alligator clips.
Non-Contact Sensing: Trace wires without damaging the insulation; the probe detects the signal through plastic, wood, and even thin drywall.
Continuity & Short Circuit Testing: Quickly identify if a wire is broken (open) or touching another wire (short) without using a multimeter.
LED Flashlight & Earphone Jack: The receiver features a built-in light for dark corners and a headphone jack so you can trace wires in noisy server rooms.
Adjustable Volume: Fine-tune the sensitivity to pinpoint the exact wire in a high-density patch panel.
Technical Specifications
| Feature | Specification |
| Model | FR LPM 10A |
| Signal Transmission Distance | > 300 meters |
| Interfaces | RJ45, RJ11, Alligator Clips |
| Tone Frequency | 1.5kHz |
| Power Supply | 2 x 9V 6F22 Batteries (One for Transmitter, one for Receiver) |
| Dimensions (Transmitter) | 125mm x 48mm x 25mm |
| Dimensions (Receiver) | 175mm x 40mm x 24mm |
Who needs this?
IT Professionals: Mapping out unlabelled network ports in an office.
Electricians: Finding the correct circuit breaker or tracing residential wiring.
Auto Mechanics: Tracing a faulty wire in a vehicle’s complex wiring loom.
DIYers: Identifying which wire goes to which speaker in a multi-room setup.

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