AUTOOL DM103 Digital LCR Tweezer for SMD Components
US$40.00
- Auto LCR + Diode Checks
- Selectable Test Conditions
- ±0.5% Basic Accuracy
- RS, D, Q, Z + X Values
- Auto LCR + Diode Checks: Automatically identify resistance, capacitance, or inductance, then switch to diode or continuity checks with the tweezer-style probes.
- Selectable Test Conditions: Choose 100 Hz, 1 kHz, or 10 kHz test frequency and 0.3 V or 0.6 Vrms level.
- ±0.5% Basic Accuracy: DM103 combines ±0.5% basic accuracy with fine gold-plated tips for small SMD components and dense circuit boards.
- RS, D, Q, Z + X Values: View the main reading alongside RS, D, Q, Z, and X parameters on the OLED display.
- Auto LCR + Diode Checks: Automatically identify resistance, capacitance, or inductance, then switch to diode or continuity checks with the tweezer-style probes.
- Selectable Test Conditions: Choose 100 Hz, 1 kHz, or 10 kHz test frequency and 0.3 V or 0.6 Vrms level.
- ±0.5% Basic Accuracy: DM103 combines ±0.5% basic accuracy with fine gold-plated tips for small SMD components and dense circuit boards.
- RS, D, Q, Z + X Values: View the main reading alongside RS, D, Q, Z, and X parameters on the OLED display.
- 3-Year Warranty Main unit 3 years · Accessories 1 year
- 90-Day Returns Eligible returns within 90 days
- Official Store Genuine products · Direct support
AUTOOL DM103 · SMD LCR Tweezer
Identify and Measure Small Board Components
Identify and measure small board components directly with tweezer-style probes. DM103 automatically recognizes resistance, capacitance, or inductance, adds diode and continuity checks, and shows primary readings with RS, D, Q, Z, and X parameters. Selectable frequency and test-level settings help match the measurement to the component and method.
- Auto L / C / R Recognition
- 100 Hz / 1 kHz / 10 kHz
- 0.3 V / 0.6 Vrms Test Level
- RS / D / Q / Z / X Parameters
- ±0.5% Basic Accuracy
Key Features
Fine Tips with Automatic Component Recognition
6 Modes: Auto LCR, Diode + Continuity
Use automatic, inductance, capacitance, resistance, diode, or continuity modes. Auto mode recognizes resistors, capacitors, and inductors without repeated manual switching, supporting fast checks on dense automotive boards and SMD repair jobs.
Primary + Secondary Analysis
View primary values with RS, D, Q, Z, and X secondary parameters. Select 100Hz, 1kHz, or 10kHz and a 0.3V or 0.6Vrms effective test level; read D and Q with L, C, and R data to compare component behavior during diagnosis and ECU board troubleshooting.
±0.5% Accuracy + Fine Tips
The stated ±0.5% measurement accuracy and fine gold-plated contact tips support reliable contact and measurement on small SMD components and high-density circuit boards.
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
The built-in 400mAh lithium battery supports up to 12 hours of continuous operation on a full charge for extended diagnosis and batch testing.
Type-C Charging + Updates
Charge the DM103 or connect it to a computer for applicable online software upgrades through Type-C.
Tweezer Form For Board Repair
The multifunctional portable LCR tweezer reaches tight board spaces without changing tools and supports SMD component testing, automotive circuit-board repair, and electronic troubleshooting.
Measurement Controls
Press Power/Mode to power on, long-press it to power off, and use it in measurement mode to switch among AUTO, L, C, R, diode, and continuity. Press Frequency/Menu to change frequency; long-press it to enter or exit settings, where it moves downward. Press Hold/Level to hold the current reading; long-press it to switch key sound, and use it to move upward in settings.
3 Years Warranty Support
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
Service Workflow
Discharge, Grip and Read the Component
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.
Safe Use
Protect the Tweezer from Energized Circuits
Interpret the Result in Context
Use DM103 for the listed component and LCR modes. In-circuit readings can be affected by parallel paths, stored charge and surrounding components, so isolate or confirm the component when the repair decision requires it.
De-Energize and Protect the Tweezer
Do not apply voltage during measurement. Disconnect circuit power, fully discharge capacitors, and keep the tweezer away from humid areas, flammable gases or vapors, high heat, dust, and direct sunlight.
Specifications
Measurement Range and Tool Specifications
| Specification | Value |
|---|---|
| Test modes | Auto, inductance, capacitance, resistance, diode, continuity |
| Test frequencies | 100 Hz, 1 kHz, 10 kHz |
| Test levels | 0.3 V and 0.6 Vrms |
| Stated basic accuracy | ±0.5% |
| Battery | 400 mAh rechargeable lithium battery |
| Stated operating time | Up to 12 hours |
Manual & Support
Find the Manual and Connection Guidance
AUTOOL DM103 User Manual
Open the PDF manual for AUTOOL DM103 component identification, measurement modes, frequency selection, parameter display, fine-tip handling, charging, calibration safety and troubleshooting support.
Package Contents
See What Comes in the Box
- Included ItemMain Unit AUTOOL DM103 Digital LCR Tweezer
- Included ItemStorage Protective storage case
- Included ItemCable Type-C cable
- Included ItemDocumentation User manual
Buyer Questions
Circuit Connection and Measurement Questions
Can DM103 Measure Live Circuits?
No. DM103 is not designed for measuring live circuits. Always disconnect power and fully discharge capacitors before testing to prevent device damage and ensure accurate readings.
Why Is D Value Important?
D indicates loss under the selected test conditions. Compare it with the component specification at the same frequency and test level; do not judge condition from D alone.
What Components Can DM103 Test?
DM103 can test resistance, capacitance, inductance, diode, and continuity. It also supports automatic component recognition for resistance, capacitance, and inductance testing.
What Frequencies Does DM103 Support?
DM103 supports three testing frequencies: 100Hz, 1kHz, and 10kHz.
How Long Can The Battery Last?
The built-in 400mAh lithium battery supports up to 12 hours of continuous operation on a full charge.
Can DM103 Be Updated?
Yes. DM103 supports software upgrades through a Type-C connection to a computer, helping keep the device updated with the latest features and improvements.
What Warranty Support Is Available?
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.
Nicole-zhang –
Troubleshooting tiny electronics and getting precise meter readings is often tedious. The AUTOOL DM103 Digital LCR Tweezer Smart Meter solves this hassle. Unlike standard multimeters that force you to juggle loose probes and watch the screen at the same time, this tool is simple to use: power it up, then touch its tweezer probes to your component’s wires to take measurements instantly.