AT-9135 Automotive Circuit Multi-Function Tester with LCD display

Product Description

Product Description

The Automotive Circuit Multi-Function Tester is a professional diagnostic tool designed for testing electrical systems in 12V to 24V vehicles. It significantly reduces testing time by allowing direct inspection without the need to disconnect the vehicle battery or use jumper wires.

Equipped with a digital LCD display with backlight, this tester ensures clear visibility in all working conditions. It is an efficient, reliable, and user-friendly tool ideal for automotive technicians and enthusiasts seeking to streamline electrical system diagnostics.

Key Features & Functions
  • Determine circuit polarity and status (short/open)
  • Activate components using positive or negative current — no jumper wires required
  • Check circuit continuity easily
  • Identify missing cylinders quickly
  • Measure frequency of high-tension ignition pulses to calculate engine RPM
  • Detect peak values accurately
  • Test circuit voltage with precision — readings displayed on a digital backlit LCD within 0.1V accuracy
Frequently Asked Questions (FAQ)
Q: What is the voltage application range for this tester?

This multi-function tester is specifically designed for diagnostics on 12V to 24V vehicle electrical systems.

Q: Do I need to disconnect the battery to run circuit tests?

No, this diagnostic tool allows for direct inspection without disconnecting the vehicle battery, saving you valuable testing time.

Q: How accurate are the voltage readings?

The voltage readings are highly precise, measured and shown on the digital backlit LCD screen within a 0.1V accuracy.

Q: Can I use this device to test component activation?

Yes, the tester allows you to activate components directly using positive or negative current without needing jumper wires.

Q: How does it measure engine RPM?

The tester calculates the engine RPM by measuring the frequency of the high-tension ignition pulses.

Q: Does it work well in dark working environments?

Yes, it features a built-in digital LCD display with a backlight, ensuring clear visibility under any working conditions.

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