{"id":61120,"date":"2025-10-22T06:17:20","date_gmt":"2025-10-22T06:17:20","guid":{"rendered":"https:\/\/shop.autooltech.com\/?post_type=product&p=61120"},"modified":"2026-05-15T06:42:02","modified_gmt":"2026-05-15T13:42:02","slug":"autool-dm103-digital-lcr-tweezer-for-resistance-capacitance-and-inductance","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/fi\/product\/autool-dm103-digital-lcr-tweezer-for-resistance-capacitance-and-inductance\/","title":{"rendered":"AUTOOL DM103 Digital LCR Tweezer for Resistance Capacitance and Inductance"},"content":{"rendered":"
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AUTOOL DM103<\/div>\n

Product Overview<\/h2>\n

The AUTOOL DM103 is a multifunctional portable digital LCR tweezer for SMD component testing, automotive circuit board repair, and electronic troubleshooting. With \u00b10.5% 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.<\/p>\n

DM103 supports three test frequencies \u2014 100Hz, 1kHz, and 10kHz \u2014 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.<\/p>\n

\n \u00b10.5% Accuracy<\/span>\n 6 Test Modes<\/span>\n HD OLED<\/span>\n Type-C Upgrade<\/span>\n <\/div>\n
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100Hz<\/span>1kHz \/ 10kHz<\/span><\/div>\n
0.3V<\/span>0.6Vrms<\/span><\/div>\n
400mAh<\/span>Lithium Battery<\/span><\/div>\n
3 Years<\/span>Warranty<\/span><\/div>\n <\/div>\n <\/div>\n
\n \"AUTOOL\n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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Key Features<\/div>\n

Key Features<\/h2>\n

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.<\/p>\n

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D \/ Q Value Insight<\/h3>\n

Read D and Q values together with L, C, and R data to judge component condition faster and avoid basic multimeter misreads.<\/p>\n <\/article>\n

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Auto Component Recognition<\/h3>\n

Smart recognition helps identify resistors, capacitors, and inductors quickly on dense automotive boards and SMD repair jobs.<\/p>\n <\/article>\n

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Tweezer Form Factor<\/h3>\n

The tweezer-style probes reach tight board spaces and keep the workflow compact without changing tools.<\/p>\n <\/article>\n

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Board-Level Repair<\/h3>\n

Synchronized primary and secondary values help technicians compare component behavior quickly during ECU board troubleshooting.<\/p>\n <\/article>\n <\/div>\n <\/div>\n

\n \"AUTOOL\n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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Key Features<\/div>\n

Key Features<\/h2>\n

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.<\/p>\n <\/div>\n\n

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6 Test Modes<\/h3>\n

Supports automatic, inductance, capacitance, resistance, diode, and continuity test modes. Auto mode quickly identifies resistance, capacitance, and inductance without manual switching.<\/p>\n <\/article>\n

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Primary + Secondary Parameters<\/h3>\n

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.<\/p>\n <\/article>\n

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HD OLED Color Display<\/h3>\n

The self-illuminating HD OLED color screen provides high brightness and clear reading in bright or dim working environments.<\/p>\n <\/article>\n

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400mAh Rechargeable Battery<\/h3>\n

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

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Gold-Plated Fine Tips<\/h3>\n

Fine gold-plated contact probes improve contact reliability and measurement accuracy when testing small SMD components on high-density circuit boards.<\/p>\n <\/article>\n

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Type-C Software Upgrade<\/h3>\n

Supports online software upgrades through a Type-C connection to a computer, helping keep the device updated with feature and performance improvements.<\/p>\n <\/article>\n <\/div>\n\n

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\"AUTOOL\n Click to enlarge<\/span>\n <\/figure>\n
\"AUTOOL\n Click to enlarge<\/span>\n <\/figure>\n
\"AUTOOL\n Click to enlarge<\/span>\n <\/figure>\n
\"AUTOOL\n Click to enlarge<\/span>\n <\/figure>\n
\"AUTOOL\n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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Specifications<\/div>\n

Specifications<\/h2>\n

Review the DM103 measurement ranges, parameters, frequencies, display settings, power, size, and operating environment before ordering.<\/p>\n <\/div>\n\n

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Measurement<\/td><\/tr>\n
Product<\/td>AUTOOL DM103 Digital LCR Tweezer<\/td><\/tr>\n
Accuracy<\/td>\u00b10.5%<\/td><\/tr>\n
Resistance Range<\/td>10m\u03a9-10M\u03a9<\/td><\/tr>\n
Capacitance Range<\/td>Auto Mode: 50pF-5mF; Capacitance Mode: 1pF-20mF<\/td><\/tr>\n
Inductance Range<\/td>Auto Mode: 5\u03bcH-60H; Inductance Mode: 1\u03bcH-60H<\/td><\/tr>\n
Supported Parameters<\/td>L, C, R, D, Q, Rs, RS, Z, X<\/td><\/tr>\n
Frequency<\/td>100Hz, 1kHz, 10kHz<\/td><\/tr>\n
Test Level<\/td>0.3V, 0.6V \/ 0.6Vrms<\/td><\/tr>\n
Test Speed<\/td>1 time \/ second<\/td><\/tr>\n
Test Modes<\/td>Automatic, inductance, capacitance, resistance, diode, and continuity<\/td><\/tr>\n\n
Display And Settings<\/td><\/tr>\n
Display<\/td>HD OLED color display<\/td><\/tr>\n
Language Selection<\/td>Chinese \/ English<\/td><\/tr>\n
Volume Setting<\/td>0%-100%<\/td><\/tr>\n
Backlight Brightness<\/td>10%-100%<\/td><\/tr>\n
Auto Power Off<\/td>Off \/ 5min-120min<\/td><\/tr>\n\n
Power And Build<\/td><\/tr>\n
Battery Capacity<\/td>3.7V, 400mAh lithium battery<\/td><\/tr>\n
Continuous Operation<\/td>Up to 12 hours on a full charge<\/td><\/tr>\n
Charging \/ Upgrade<\/td>Type-C charging and Type-C software upgrade<\/td><\/tr>\n
Material<\/td>ABS<\/td><\/tr>\n
Dimensions<\/td>145mm x 30mm \/ 5.7in x 1.2in<\/td><\/tr>\n\n
Environment<\/td><\/tr>\n
Operating Environment<\/td>Up to 40\u00b0C, humidity <75%<\/td><\/tr>\n
Storage Environment<\/td>-20\u00b0C to 60\u00b0C, humidity <80%<\/td><\/tr>\n
Warranty<\/td>3-year warranty for eligible non-human damage cases<\/td><\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n\n
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\n Measurement<\/summary>\n
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Product<\/span>AUTOOL DM103 Digital LCR Tweezer<\/strong><\/div>\n
Accuracy<\/span>\u00b10.5%<\/strong><\/div>\n
Resistance Range<\/span>10m\u03a9-10M\u03a9<\/strong><\/div>\n
Capacitance Range<\/span>Auto Mode: 50pF-5mF; Capacitance Mode: 1pF-20mF<\/strong><\/div>\n
Inductance Range<\/span>Auto Mode: 5\u03bcH-60H; Inductance Mode: 1\u03bcH-60H<\/strong><\/div>\n
Supported Parameters<\/span>L, C, R, D, Q, Rs, RS, Z, X<\/strong><\/div>\n
Frequency<\/span>100Hz, 1kHz, 10kHz<\/strong><\/div>\n
Test Level<\/span>0.3V, 0.6V \/ 0.6Vrms<\/strong><\/div>\n
Test Speed<\/span>1 time \/ second<\/strong><\/div>\n
Test Modes<\/span>Automatic, inductance, capacitance, resistance, diode, and continuity<\/strong><\/div>\n <\/div>\n <\/details>\n\n
\n Display And Settings<\/summary>\n
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Display<\/span>HD OLED color display<\/strong><\/div>\n
Language Selection<\/span>Chinese \/ English<\/strong><\/div>\n
Volume Setting<\/span>0%-100%<\/strong><\/div>\n
Backlight Brightness<\/span>10%-100%<\/strong><\/div>\n
Auto Power Off<\/span>Off \/ 5min-120min<\/strong><\/div>\n <\/div>\n <\/details>\n\n
\n Power And Build<\/summary>\n
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Battery Capacity<\/span>3.7V, 400mAh lithium battery<\/strong><\/div>\n
Continuous Operation<\/span>Up to 12 hours on a full charge<\/strong><\/div>\n
Charging \/ Upgrade<\/span>Type-C charging and Type-C software upgrade<\/strong><\/div>\n
Material<\/span>ABS<\/strong><\/div>\n
Dimensions<\/span>145mm x 30mm \/ 5.7in x 1.2in<\/strong><\/div>\n <\/div>\n <\/details>\n\n
\n Environment<\/summary>\n
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Operating Environment<\/span>Up to 40\u00b0C, humidity <75%<\/strong><\/div>\n
Storage Environment<\/span>-20\u00b0C to 60\u00b0C, humidity <80%<\/strong><\/div>\n
Warranty<\/span>3-year warranty for eligible non-human damage cases<\/strong><\/div>\n <\/div>\n <\/details>\n <\/div>\n <\/section>\n\n
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How To Use<\/div>\n

How To Use<\/h2>\n

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

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Power \/ Mode<\/h3>\n

Press to power on. Long press to power off. In measurement mode, switch among AUTO, L, C, R, diode, and continuity.<\/p>\n <\/article>\n

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Frequency \/ Menu<\/h3>\n

Use this key to switch frequency in measurement mode. Long press to enter or exit settings, then move downward.<\/p>\n <\/article>\n

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Hold \/ Level<\/h3>\n

Hold the current reading in measurement mode. Long press to switch key sound, and move upward inside settings.<\/p>\n <\/article>\n

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Type-C \/ OLED \/ Tips<\/h3>\n

Charge or upgrade through Type-C, read results on the OLED screen, and touch SMD parts with the gold-plated tips.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n

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Before You Order And Use<\/div>\n

Before You Order And Use<\/h2>\n

DM103 is designed for passive component and circuit-board component testing. It is not designed for live-circuit measurement.<\/p>\n <\/div>\n

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Safety And Measurement Notes<\/h3>\n