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The New Circuit Master

SKU: 21700
  • Use to test all primary electrical circuits plus any on-board computer systems.
  • Test computer circuits without fear of causing damage to expensive electronic components.
  • Completely safe to use on microprocessor control modules.
  • Operating range form 3-15 volts with current draw less than 21 milliamps at 12 volts D.C.
  • Long life LED glows when voltage is sensed at probe and indicates polarity: Red = + (Positive) and Green = - (Negative).
  • Use to locate shorts, opens and intermittents.
  • Made of high impact chemical resistant plastic.
  • 4 foot ground wire.
  • Solid state construction.
  • Supplied with Protect-A-Terminal®, Probe Adapter (Part No. 21713), which will not deform sensitive female terminals at computer connections.