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GM.700 Surge Wave Fault Pin-Pointer

The GM.700 is a precision acoustic and magnetic cable fault locator, purpose-built for underground cable diagnostics. By detecting vibration, sound, and electromagnetic emissions from surge-induced discharges, it enables accurate fault pinpointing with ±0.2 m resolution.

Equipped with a microammeter display, frequency tuning, and independent acoustic/magnetic channels, the GM.700 provides reliable results even in noisy field conditions. With magnification up to 500,000× and detection depths reaching 10 meters, it is an essential tool for power utilities and field technicians performing fault location and cable route detection.

Key Features

  • High accuracy: ±0.2 m pinpointing resolution

  • Dual-channel operation: acoustic and magnetic detection with separate power control

  • Two working modes: fixed-point fault location & cable path detection

  • Extreme signal amplification: magnification up to 500,000×

  • Deep fault detection: up to 10 m penetration depth

  • Adjustable frequency & volume for use in varied environments

  • Long endurance: up to 20 hours continuous operation

  • Rugged & field-ready: reliable in –20°C to +50°C and <90% RH

  • Noise immunity: zero electrical level design for enhanced stability

  • System compatibility: works with TDR.700 and other surge generators

Technical Specifications

  • Positioning Accuracy: ±0.2 m

  • Magnification: 500,000×

  • Detection Depth: 10 m

  • Output Impedance: 350 Ω

  • Power Supply: 3.7V 3200mAh (4-cell battery)

  • Quiescent Current: <10 mA

  • Battery Life: Up to 20 hours continuous use

  • Working Modes:

    • Off

    • Fixed Point (Fault Location)

    • Path (Cable Route Detection)

  • Operating Environment:

    • Temperature: –20°C to +50°C

    • Relative Humidity: <90%

Standard Accessories

  • GM.700 Cable Fault Pin-Pointer (1×)

  • Headphone Set (1×)

  • Probe with Handle (1×)

  • Audio Line (1 set)

  • Ground Spike (1×)

  • Charger (1×)

  • IP65 Transport Case (1×)

  • User Manual (1×)

  • Factory Certificate (1×)

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