Ampetronic -AMP-FSM Induction loop Field Strength Meter

Induction loop Field Strength meter for measuring, setting up and commissioning an induction loop systems.

SKU: a7187c4593d5 Brand:


The FSM is a cost effective and simple solution for measuring, setting up and commissioning an induction loop system to the requirements of IEC60118-4. The meter is an ergonomically designed hand held instrument for measuring loop system performance. There are three calibrated operational modes for the assessment of Background Noise, Field Strength and Frequency Response as required to ensure correct function of the loop system. The meter also doubles as a loop listener, with a headphone output to listen to the signal in the loop. The meter is supplied in a soft case with an audio CD with the required test signals, and full operating instructions including a guide to commissioning. The Ampetronic FSM can be used to monitor, set up or commission any induction loop system regardless of the manufacturer or type.


  • Simple assessment of any system to IEC60118-4
  • Three modes of operation for three test types
  • A-Weighted background noise • Broad band mode (50Hz - 8kHz)
  • Frequency response (100Hz, 1kHz, 5kHz)
  • True RMS detection calibrated to 400mA/m = 0dB
  • Wide viewing angle LED display
  • Colour coded LEDs for simple readout
  • Resolution to 1dB
  • Head phone output with volume control
  • Ergonomic, rugged, light weight construction
  • Soft carry case
  • 5 year warranty

Applications include

  • Accurate set-up and commissioning
  • System monitoring and maintenance
  • Site surveys
  • Certification to IEC60118-4
  • Assessment of frequency losses due to metal
  • Assessment of loop coverage and overspill
  • Assessment of background noise

Included Accessories

  • Soft carry pouch
  • User guide/handbook
  • Commissioning Certificate (template)
  • Batteries

Optional Accessories
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