Voltage Drop Tester

Voltage Drop Tester



Don’t blow your fuse misdiagnosing an electrical problem.

Get it right, Get it fast. The first time!


  • Real time loaded and unloaded voltage measurements
  • Pinpoint excessive resistance
  • Identify intermittent connections
  • 1-20 Amp selectable current draw
  • Computer Safe/Won’t blow fuses
  • Test VREF circuits



Voltage Drop PRO automatically tests vehicle wiring under load and measures voltage drop in the circuit.


Real time loaded and unloaded voltage readings are displayed. Switch modes to view readings from both sides of the circuit, pinpointing any excessive voltage drops. User selected current draw allows the component current to be simulated. Volt Drop Pro won’t blow fuses or damage computers. The Wiggle Test feature operates continuously aiding in intermittent signal drop out detection.