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AUTOOL DM103 Digital LCR Tweezer for Resistance Capacitance and Inductance

AUTOOL DM103 Digital LCR Tweezer for Resistance Capacitance and Inductance

US$39.90

Key Features

Smart Component Recognition
Dual-Parameter Display
Precision SMD Probes

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☰ REQUEST BULK / B2B QUOTE

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AUTOOL DM103

Product Overview

The AUTOOL DM103 is a multifunctional portable digital LCR tweezer for SMD component testing, automotive circuit board repair, and electronic troubleshooting. With ±0.5% measurement accuracy, a HD OLED color display, smart component recognition, and support for resistance, capacitance, inductance, diode, and continuity testing, it helps users quickly identify components and evaluate component condition directly on high-density circuit boards.

DM103 supports three test frequencies — 100Hz, 1kHz, and 10kHz — and two effective test levels, 0.3V and 0.6Vrms. During measurement, it can synchronously display primary and secondary parameters, including RS, D, Q, Z, and X values, meeting a wider range of component diagnosis and repair needs than basic multimeters.

±0.5% Accuracy 6 Test Modes HD OLED Type-C Upgrade

100Hz1kHz / 10kHz

0.3V0.6Vrms

400mAhLithium Battery

3 YearsWarranty

AUTOOL DM103 Digital LCR Tweezer main product feature image

Key Features

For automotive circuit board testing, the D value and Q value are important indicators for component health. DM103 helps users go beyond static capacitance or resistance readings and judge component performance more accurately.

D / Q Value Insight

Read D and Q values together with L, C, and R data to judge component condition faster and avoid basic multimeter misreads.

Auto Component Recognition

Smart recognition helps identify resistors, capacitors, and inductors quickly on dense automotive boards and SMD repair jobs.

Tweezer Form Factor

The tweezer-style probes reach tight board spaces and keep the workflow compact without changing tools.

Board-Level Repair

Synchronized primary and secondary values help technicians compare component behavior quickly during ECU board troubleshooting.

AUTOOL DM103 smart component recognition and D Q values feature image

Key Features

DM103 combines smart recognition, six test modes, OLED display, rechargeable battery power, fine gold-plated tips, and Type-C software upgrade support in a compact tweezer-style tool.

6 Test Modes

Supports automatic, inductance, capacitance, resistance, diode, and continuity test modes. Auto mode quickly identifies resistance, capacitance, and inductance without manual switching.

Primary + Secondary Parameters

Displays primary values and secondary parameters at the same time, including RS, D, Q, Z, and X values, helping users evaluate both component type and performance condition.

HD OLED Color Display

The self-illuminating HD OLED color screen provides high brightness and clear reading in bright or dim working environments.

400mAh Rechargeable Battery

Built-in 400mAh lithium battery supports up to 12 hours of continuous operation on a full charge, suitable for extended diagnosis and batch testing.

Gold-Plated Fine Tips

Fine gold-plated contact probes improve contact reliability and measurement accuracy when testing small SMD components on high-density circuit boards.

Type-C Software Upgrade

Supports online software upgrades through a Type-C connection to a computer, helping keep the device updated with feature and performance improvements.

AUTOOL DM103 400mAh rechargeable lithium battery image

AUTOOL DM103 precision gold-plated contact probes image

AUTOOL DM103 Type-C software online upgrade image

Specifications

Review the DM103 measurement ranges, parameters, frequencies, display settings, power, size, and operating environment before ordering.

Measurement
Product	AUTOOL DM103 Digital LCR Tweezer
Accuracy	±0.5%
Resistance Range	10mΩ-10MΩ
Capacitance Range	Auto Mode: 50pF-5mF; Capacitance Mode: 1pF-20mF
Inductance Range	Auto Mode: 5μH-60H; Inductance Mode: 1μH-60H
Supported Parameters	L, C, R, D, Q, Rs, RS, Z, X
Frequency	100Hz, 1kHz, 10kHz
Test Level	0.3V, 0.6V / 0.6Vrms
Test Speed	1 time / second
Test Modes	Automatic, inductance, capacitance, resistance, diode, and continuity
Display And Settings
Display	HD OLED color display
Language Selection	Chinese / English
Volume Setting	0%-100%
Backlight Brightness	10%-100%
Auto Power Off	Off / 5min-120min
Power And Build
Battery Capacity	3.7V, 400mAh lithium battery
Continuous Operation	Up to 12 hours on a full charge
Charging / Upgrade	Type-C charging and Type-C software upgrade
Material	ABS
Dimensions	145mm x 30mm / 5.7in x 1.2in
Environment
Operating Environment	Up to 40°C, humidity <75%
Storage Environment	-20°C to 60°C, humidity <80%
Warranty	3-year warranty for eligible non-human damage cases

Measurement

ProductAUTOOL DM103 Digital LCR Tweezer

Accuracy±0.5%

Resistance Range10mΩ-10MΩ

Capacitance RangeAuto Mode: 50pF-5mF; Capacitance Mode: 1pF-20mF

Inductance RangeAuto Mode: 5μH-60H; Inductance Mode: 1μH-60H

Supported ParametersL, C, R, D, Q, Rs, RS, Z, X

Frequency100Hz, 1kHz, 10kHz

Test Level0.3V, 0.6V / 0.6Vrms

Test Speed1 time / second

Test ModesAutomatic, inductance, capacitance, resistance, diode, and continuity

Display And Settings

DisplayHD OLED color display

Language SelectionChinese / English

Volume Setting0%-100%

Backlight Brightness10%-100%

Auto Power OffOff / 5min-120min

Power And Build

Battery Capacity3.7V, 400mAh lithium battery

Continuous OperationUp to 12 hours on a full charge

Charging / UpgradeType-C charging and Type-C software upgrade

MaterialABS

Dimensions145mm x 30mm / 5.7in x 1.2in

Environment

Operating EnvironmentUp to 40°C, humidity <75%

Storage Environment-20°C to 60°C, humidity <80%

Warranty3-year warranty for eligible non-human damage cases

How To Use

DM103 uses a compact three-button layout with Type-C charging / upgrade interface, OLED display, charging indicator, and precision tweezer tips.

Power / Mode

Press to power on. Long press to power off. In measurement mode, switch among AUTO, L, C, R, diode, and continuity.

Frequency / Menu

Use this key to switch frequency in measurement mode. Long press to enter or exit settings, then move downward.

Hold / Level

Hold the current reading in measurement mode. Long press to switch key sound, and move upward inside settings.

Type-C / OLED / Tips

Charge or upgrade through Type-C, read results on the OLED screen, and touch SMD parts with the gold-plated tips.

Before You Order And Use

DM103 is designed for passive component and circuit-board component testing. It is not designed for live-circuit measurement.

Safety And Measurement Notes

Do not apply voltage during measurement.
DM103 is not designed for measuring live circuits.
Always disconnect power before testing circuit-board components.
Fully discharge all capacitors before measurement.
Always discharge capacitors before measurement to prevent device damage and improve reading accuracy.
Avoid high temperatures, dust, and direct sunlight during use or storage.
Do not use in humid environments.
Do not use near flammable gases or vapors to prevent safety hazards.

Manual And Downloads

Download the AUTOOL DM103 manual for measurement modes, button operation, settings, charging, software upgrade, and safety instructions.

AUTOOL DM103 User Manual

Open the PDF manual for detailed DM103 operation, setting, charging, upgrade, and safety guidance.

Download Manual

Need Setup Confirmation?

Contact AUTOOL Store before ordering if you need help confirming measurement range, D/Q value use, Type-C upgrade support, SMD testing suitability, or safety precautions.

Emailsupport@autoolstore.com WhatsApp+86 189 2647 7404

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Common Car Breakdowns and Solutions

See common electrical fault patterns and where LCR-level measurement can reduce misdiagnosis.

Questions And Answers

These answers cover live-circuit safety, capacitor discharge, D value, supported test components, test frequency, battery life, software upgrade, and warranty support.

Can DM103 Measure Live Circuits?

Why Is D Value Important?

What Components Can DM103 Test?

What Frequencies Does DM103 Support?

How Long Can The Battery Last?

Can DM103 Be Updated?

What Warranty Support Is Available?

Warranty And Contact

For product support, manual requests, measurement range confirmation, D/Q parameter questions, Type-C upgrade support, SMD testing suitability, safety precautions, or warranty questions, contact AUTOOL Store directly.

Pre-Sales And Product Support

Use support if you need help confirming whether DM103 fits your circuit-board repair workflow, how to interpret D/Q values, how to safely discharge capacitors before testing, how to perform Type-C software upgrade, or what is included in the package.

3-year warranty for eligible non-human damage cases
Manual request and setup confirmation
Support for measurement range, D value, Q value, RS / Z / X secondary parameters, and smart component recognition
Type-C charging and software upgrade support
Safety guidance for capacitor discharge and non-live circuit measurement

Email Supportsupport@autoolstore.com WhatsApp Support+86 189 2647 7404

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Automotive Repair & Testing Equipment

Automotive Repair & Maintenance Equipment

Carbon Deposit Cleaning Equipment

Wheel and Tire Repair Equipment

Workshop Tool Storage Series

Electric Vehicle Charger Series

OBD Diagnostic Tools

Accessories

AUTOOL DM103 Digital LCR Tweezer for Resistance Capacitance and Inductance

Product Overview

Key Features

D / Q Value Insight

Auto Component Recognition

Tweezer Form Factor

Board-Level Repair

Key Features

6 Test Modes

Primary + Secondary Parameters

HD OLED Color Display

400mAh Rechargeable Battery

Gold-Plated Fine Tips

Type-C Software Upgrade

Specifications

How To Use

Power / Mode

Frequency / Menu

Hold / Level

Type-C / OLED / Tips

Before You Order And Use

Safety And Measurement Notes

Manual And Downloads

AUTOOL DM103 User Manual

Need Setup Confirmation?

Related Products

What Is In The Box

Related Guides

Questions And Answers

Warranty And Contact

Pre-Sales And Product Support

Reviews

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