
DM103-DM303 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $50.39 | Condition is New, Digital Smart Tweezers LCR Tester Multimeter High Precision Bridge SMD Checker, FREE SHIPPING | 99.0% |
![]() | $59.70 | Condition is New, AUTOOL DM103 Digital LCR Tweezer, Smart Meter with OLED Display, Black , FREE SHIPPING | 99.7% |

The AUTOOL DM103-DM303 Diagnostic Multimeter Oscilloscope is an innovative and versatile handheld electronic testing device designed to meet the needs of both professional technicians and hobbyist engineers. This multifunctional instrument combines the features of a digital multimeter, an oscilloscope, a digital smart tweezers, an LCR meter, and an ESR meter, all in one compact and portable unit.
Starting with its digital multimeter capabilities, the DM103-DM303 offers accurate and reliable voltage, current, resistance, and continuity measurements. The large backlit LCD display provides clear and easy-to-read results, and the unit features auto-ranging functionality for added convenience.
The oscilloscope function of the DM103-DM303 allows users to capture and display voltage waves in real-time, making it an essential tool for analyzing and troubleshooting AC and DC signals. With a sampling rate of up to 1 MSPS, the oscilloscope can capture signals of varying frequencies and amplitudes, providing valuable insights into the behavior of electronic circuits.
The digital smart tweezers function is another unique feature of this instrument. These tweezers can be used to measure the capacitance, inductance, resistance, and ESR (Equivalent Series Resistance) of components as small as 0402 and 0603 SMDs. The LCD display provides real-time measurements, making it an indispensable tool for SMD component testing and repair.
The LCR meter function of the DM103-DM303 enables users to measure the inductance, capacitance, and resistance of components, including both active and passive components. This feature is particularly useful for measuring the values of capacitors, inductors, and resistors in electronic circuits, ensuring accurate and reliable component selection and replacement.
The DM103-DM303 also features an easy-to-use and intuitive interface, with one-key operation for most functions. The unit includes a wide range of test leads and probes, ensuring compatibility with a variety of measurement applications. Additionally, the device is powered by two AA batteries, making it a truly portable solution for electronic testing on the go.
In summary, the AUTOOL DM103-DM303 Diagnostic Multimeter Oscilloscope is a powerful and versatile electronic testing instrument that combines the functionality of a digital multimeter, oscilloscope, digital smart tweezers, LCR meter, and ESR meter. With its compact and portable design, clear and easy-to-read display, and extensive range of functions, this device is an essential tool for any electronics technician or hobbyist engineer.
The Autool DM103-DM303 diagnostic multimeter oscilloscope is a versatile handheld testing tool designed for automotive diagnostics, electrical tests, and oscilloscope functions. Here are some pros and cons that might help you in making your purchasing decision:
Pros:1. Multi-functional: This device serves as a diagnostic multimeter, oscilloscope, digital smart tweezers, LCR meter, and ESR meter, making it a comprehensive tool for various electrical tests and diagnostics.
2. Compact and portable: The DM103-DM303 is a handheld device, making it easy to carry around in your toolbox or glove box for on-the-go testing.
3. User-friendly: The device comes with an intuitive interface and easy-to-understand menus, allowing even beginners to perform tests with ease.
4. High accuracy: The digital multimeter and oscilloscope functions of this device offer high accuracy readings, ensuring accurate test results.
5. Versatile applications: The tool is suitable for automotive diagnostics, electronics testing, and hobbyist projects, making it a valuable addition to any workshop or laboratory.
Cons:1. Limited oscilloscope functionality: Although the oscilloscope function is a useful addition, it may not offer the same level of functionality and customization as a dedicated oscilloscope.
2. Limited data storage: The device lacks an extensive data storage capacity, which might be a limitation for users who need to save and review test results for future reference.
3. Limited software support: The DM103-DM303 does not offer extensive software support, which might limit the ability to analyze test data in more detail or export data to external software for further analysis.
In conclusion, the Autool DM103-DM303 diagnostic multimeter oscilloscope offers a range of useful features for electrical testing and automotive diagnostics. Its compact size, user-friendly interface, and multi-functional capabilities make it a valuable addition to any toolbox or workshop. However, it is important to note that the oscilloscope function may not offer the same level of functionality as a dedicated oscilloscope, and the limited data storage and software support might be a limitation for some users.
Based on the information provided, I would recommend this device to DIY enthusiasts, hobbyists, and automotive professionals who require a versatile, compact, and easy-to-use testing tool for various electrical tests and diagnostics. If you require more advanced oscilloscope functionality, extensive data storage, or software support, a dedicated oscilloscope might be a better investment for you.
Details:
First of all, there is high precision testing to ensure the accuracy measurement data, integrated oscilloscope function, which facilitates users ability monitor dynamic changes automotive circuits in real time. But also has a powerful built-in oscilloscope function. Power indicator, when the indicator light is red, battery should be charged or replaced in time to ensure normal operation. It not only has the basic measurement functions of a traditional multimeter, such as voltage , current, resistance, etc.
HD OLED color screen, self-illuminating screen ensures measurement data is clear at a glance, making it easy to read even in bright light or nighttime conditions. By variable sampling frequency, it can measure the amount of slowly changing signals. The operation interface is intuitive and easy to use, supporting a variety of communication protocols interfaces, making data transmission more convenient. It is suitable for measuring and observing various signals on automobile circuits in the process of overhaul, including motor drive power voltage s new energy vehicles, ignition pulse fuel vehicle engines, camshaft signals, crankshaft wheel speed sensor oxygen so.
Supports precision measurement of resistance, capacitance, inductance, and diode/ continuity. 2.8-inch color display, adjustable screen brightness, clear and intuitive data, suitable for a variety of working environments. The voltage range is converted automatically;. Autool dm303 digital diagnostic multimeter demonstrates significant technical advantages and user experience enhancements over traditional multimeter.
Autool dm303 automotive diagnostic multimeter oscilloscope is a full-featured, efficient and practical automotive troubleshooting tool. It is also applicable to different types of automotive circuit systems meet the needs model's. Precision gold-plated contacts, designed with fine-tipped gold-plated tweezers, easily grips various tiny smd components for instant testing, offering flexible and convenient operation. Parameter, input impedance for the voltage measurement: it is 2 3m.
Support multi-language settings, English, dutch, french, German, Portuguese, Russian, Spanish, polish, Korean, Chinese simplified, traditional, Japanese, Russian. During measurement, primary and secondary parameters are displayed simultaneously.
specifications testmultimeters:
- brand: Autool
- mpn: Dm103-dm303
- part type: Multimeter Test
- country of origin: China
- warranty: 3 Year
- form factor: Handheld
- measurement functions: L, C, R, D, Q
- frequency range: 100hz, 1 Hz, 10 Z
- resistance measurement range: 10m 10
- capacitance measurement range: Auto Mode
- inductance mode: Luh-6 H
- parameters: L C R D Q Rs
- frequency: Hz
- voltage: 03v 0.6v
- test speed: 1 Time/second
- auto power off: Off / 5min-120min
- battery capacity: 3.7v, 400mah
- dm303 dc voltage range: 0-1000v
- dm303 ac voltage range: 0-700v
- dm303 resistance range: 0-1m
- basic accuracy: 0.5
- oscilloscope type: Dm303 Analog Oscilloscope
- dm303 maximum bandwidth: 500 Khz
- display: Digital
- features: Backlight, Clamp, Auto Power Off
- test/measurement functions: Dc Voltage, Resistance, Dc Current, Ac Voltage
offer testmultimeters:
- availability: in stock
- options: ship-to-home
- started: february 8, 2026
- in stock #: 2
- prices: $50.39–$59.70
- item condition: New
- sold #: 13
shipping testmultimeters:
- type: fixed
- transit: 4-9 days
- class: economy
- service: economy
returns testmultimeters:
- method: money back
- policy: returns accepted
- time: 30 days
- paid by: buyer
payments testmultimeters:
- other
- wallet: google-pay
- credit card: diners-club
general testmultimeters:
- category: Business & Industrial > Test, Measurement Inspection > Detectors > Multimeters
seller testmultimeters:
- rating: 99.5%
- # reviews: 14862
- city: bordentown, new jersey
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- 712383648891: POCKET MULTIMETER, Autool
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