Polarity Indicator Computer-Safe Circuit Tester
Polarity Indicator Computer-Safe Circuit Tester

Polarity Indicator Computer-Safe Circuit Tester

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Polarity Indicator Computer-Safe Circuit Tester
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Rugged Solid State electronic voltage detector needs no wire or clip connector to ground. Safe around automotive microcomputers, electronics control modules, sensors, etc.

Specifically designed for use on autos, trucks, trailers, RV's & boats.


  • No ground wire means no wire tangles nor time lost searching for grounding points.
  • High Impedance Electronic circuitry.
  • Negligible Current Draw (1 micro-amp) is 30,000 times less than regular lamp type testers. This gives complete safety when working around sensitive electronic control modules and sensors.
  • Operating Range between 6 and 28 Volt DC in battery powered systems.
  • Liquid Crystal Display indicates "CIRCUIT OK +" on contacting positive voltages, and "CIRCUIT OK" on contacting negative voltages.
  • Lightweight High Strength plastic construction with cap and clip.
  • Uses no batteries.
  • Maintenance free.

Technical Specifications:

  • No Ground or clip required
  • 10M-Ohm Minimum input impedance (approx. 1 micro-amps @ 24 V).
  • Operates from 6 to 28 Volts. D.C.
  • Digital LCD display.
  • High strength, lightweight carbon fiber reinforced plastic.
  • Uses no batteries.
  • Pocket sized
  • 4.562"L x 1.062"W x 0.438" D. (116.05 x 26.98 x 11.12 mm)
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