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Handheld automotive circuit probe tester with LCD display and LED work light

Power Circuit Probe 9-30V DC Automotive Short Circuit Finder

SKU CH-J566-3VAY0

A versatile 9-30V DC circuit probe combining 10+ diagnostic functions including short-circuit tracking, component activation up to 8A, and resistance measurement with an integrated LED work light

  • Team affiliation1 Piece
  • Key featuresCircuit Tester, Battery Powered, false
  • All-in-one tester covers 10+ functions for 9-30V systems
  • 8A output activates components like fuel pumps without disassembly
  • Reverse connection and overload protection safeguard circuits during diagnosis
  • Integrated LED work light illuminates dark engine bays for visibility
  • LCD display shows real-time voltage readings while testing

All-in-One Automotive Circuit Tester

This 9-30V DC probe combines voltage detection, continuity testing, component activation, grounding checks, short-circuit tracking, resistance measurement and diode verification in one tool. Reverse-connection and overload protection keep the unit safe during diagnosis. An integrated LED work light illuminates dark engine bays for easier inspection.

8A Component Activation Capability

The probe can directly power fuel pumps, solenoids, blower motors, cooling fans and headlights without removing them from the vehicle. Positive and negative voltage switching is handled by dedicated buttons on the handle. A clear LCD shows real-time voltage readings while the component is under test. This function helps confirm intermittent faults quickly.

12V System Coverage and Limits

Designed for 12V automotive electrical systems, the tester handles the 9-30V range found in standard passenger vehicles. The 8A output suits common loads such as lighting, fans and pump circuits. It is not intended for high-voltage hybrid or electric-vehicle architectures above 30V. Users needing EV-safe diagnostics will require different equipment.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $39.99
Pricier than about 63% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameEVSTUL
More details
Team affiliation1 Piece

Questions about this item

Does the 930 V probe tip need periodic calibration or replacement?

The probe is built for 930 V systems with overload protection and has no user-replaceable tip or calibration schedule mentioned.

What limits continuous use of the 8 A component-activation output?

The tool activates components at up to 8 A and includes overload protection that will trip before the probe overheats.

How hot does the handle get during all-day short-circuit tracing?

The integrated LED work light and overload protection keep the handle cool during extended 930 V diagnostics.

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