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Electrical Circuit Testing Tool


  • Tests circuits from 3 to 28 Volts DC
  • LED light and buzzer indicator
  • Does not require a ground wire or clip
  • Safe for work on automotive computers, ECMs, airbags, etc.
  • Special V-tip allows safe piercing and can be removed to test hard-to-reach places
  • Operates on replaceable long-life "N" or "LR-1" size alkaline batteries (included)
BrandATD Tools
Part Number5503
Line CodeATD
TerminologyElectrical Circuit Testing Tool
For warranty information please contact Auto-Wares.