• GM-300

    AMR’s GM-300 Ground Check system is intended for use on all high voltage systems where a...
  • GM-250

    The model GM-250 is the most advanced high voltage ground monitor on the market today because:...
  • GM-200

    The GM-200 Ground Monitor is pilot wireless, eliminating pilot wire costs, repair and lost...
  • GM-150

    The GM-150 is pilotless and uses a 45 ohm trip resistance and a 250 ms time delay. which eliminates...