New Product Release

AUTOOL DM103 Digital LCR Tweezer for Circuit Board Testing

In automotive circuit board testing, the capacitor loss factor D value is a key indicator of component performance. A smaller D value means lower loss and better capacitor condition, while a larger D value can point to higher loss, aging, damage, or quality problems.

Traditional digital or needle-type multimeters can usually measure capacitance only in a static state. They cannot fully check secondary parameters such as the D value, loss factor, or Q value, quality factor. That limitation can lead to misjudgment during board-level diagnosis and may increase repair time and cost.

AUTOOL DM103 digital LCR tweezer product overview

Product Overview

What Makes the DM103 Useful for Automotive Electronics

The AUTOOL DM103 is a multifunctional portable LCR tweezer with a measurement accuracy of ±0.5%. It is built for precise measurement of resistance, capacitance, inductance, diode testing, and continuity testing in compact electronic assemblies.

The DM103 uses an HD OLED color display and supports three test frequencies: 100Hz, 1kHz, and 10kHz. Users can also select between 0.3V and 0.6Vrms effective test levels according to the component being checked.

During measurement, the tool can display both primary and secondary parameters at the same time. Secondary parameters include RS, D, Q, Z, and X values, so technicians can evaluate actual component behavior instead of relying on a single static reading.

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Use the DM103 together with related diagnostic tools when resistance, capacitance, inductance, electrical signal, or circuit testing is part of the same repair workflow.

Main Features

Main Features and Functions

The DM103 is designed to reduce repeated gear shifting, show more diagnostic parameters, and keep small component testing readable during ECU, sensor, and automotive electronics repair.

AUTOOL DM103 six test modes

6 Test Modes

The AUTOOL DM103 supports precise measurements of resistance, capacitance, inductance, diode, and continuity. It also synchronously displays main and secondary parameters, including RS, D, Q, Z, and X values.

This helps technicians identify component types and evaluate actual performance parameters faster, improving troubleshooting efficiency and repair accuracy.

AUTOOL DM103 smart component recognition

Smart Component Recognition

The AUTOOL DM103 automatically identifies the component type, reducing the need for frequent gear shifting.

With automatic mode selected, it can quickly measure resistance, capacitance, and inductance, making batch component testing easier and more efficient.

AUTOOL DM103 HD OLED color screen

HD OLED Color Screen

The AUTOOL DM103 features a self-illuminating HD color display with high brightness and clear data visibility.

The screen helps users read measurement data in strong light, dim environments, or tight work areas where ordinary displays can be difficult to view.

AUTOOL DM103 rechargeable lithium battery

High-Performance Rechargeable Lithium Battery

The AUTOOL DM103 includes a built-in 400mAh lithium battery for long-lasting endurance.

With a full charge, it can operate continuously for up to 12 hours, which supports extended inspection and repair sessions.

AUTOOL DM103 gold-plated precision contacts

Precision Gold-Plated Contacts

The AUTOOL DM103 uses high-precision fine contact probes with sensitive testing contacts.

The tweezer-style probe shape helps clamp small SMD electronic components accurately, meeting the needs of high-density circuit board testing.

AUTOOL DM103 compact electronic testing tweezer

Compact Board-Level Testing

For automotive electronics work, the tweezer format is useful when checking small resistors, capacitors, inductors, sensor coils, and board-mounted components.

It gives technicians a more direct way to clamp and measure parts on dense circuit boards during ECU and electronic control unit repair.

AUTOOL DM103 Type-C software upgrade support

Software Online Upgrade

The AUTOOL DM103 supports software upgrades and feature updates through a Type-C data cable connected to a computer.

This helps the device maintain updated testing performance over time.

Summary

A Compact LCR Tool for Automotive Circuit Diagnosis

The AUTOOL DM103 offers high-precision measurement, fast response, and intelligent component recognition for resistance, capacitance, and inductance testing in automotive circuits.

Whether checking sensor coils, repairing ECUs and electronic control unit boards, or modifying and troubleshooting circuits, it helps technicians obtain accurate measurements, locate faults faster, and complete diagnostics and repairs more efficiently.

Contact AUTOOL

Need More Details About the DM103?

If you would like to know more about the AUTOOL DM103 Smart Tweezers LCR Meter, contact the AUTOOL team through email or WhatsApp.

We are happy to assist you with any questions.

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