AUTOOL DM303 Auto Diagnostic Multimeter Car Circuit Tester with K/CAN/Oscilloscope/Cranking/Analog Signal/Injector/Relay Test

SPECIFICATIONSBrand Name: AUTOOLOrigin: Mainland ChinaExternal Testing Certification: ceItem Length: 26cmCertification: CEItem Width: 20cmModel Name: DM303Item Height: 11cmItem Weight: 1.7kgColor screen: 2.8 inch LCDResolution: 320*240Mximum measurable current: 20AWorking temperature: 0~40°C(32~104°F) Humidity: ≤75%;Storage temperature: 10~50°C(14~122°F) Humidity: ≤70%Altitude: 2000mAC Voltage Range: 0-700VResistance Range: 0-10MΩDC Voltage Range: 0-1000VSize: 26x20x11cmWeight: 1700gFunction 1: DC/AC Voltage MeasurementFunction...
Ships From :



Brand Name: AUTOOL

Origin: Mainland China

External Testing Certification: ce

Item Length: 26cm

Certification: CE

Item Width: 20cm

Model Name: DM303

Item Height: 11cm

Item Weight: 1.7kg

Color screen: 2.8 inch LCD

Resolution: 320*240

Mximum measurable current: 20A

Working temperature: 0~40°C(32~104°F) Humidity: ≤75%;

Storage temperature: 10~50°C(14~122°F) Humidity: ≤70%

Altitude: 2000m

AC Voltage Range: 0-700V

Resistance Range: 0-10MΩ

DC Voltage Range: 0-1000V

Size: 26x20x11cm

Weight: 1700g

Function 1: DC/AC Voltage Measurement

Function 2: DC/AC Current Measurement

Function 3: Resistance Measurement

Function 4: Frequency Measurement

Function 5: Diode Test

Function 6: Oscilloscope Test

Function 7: Automotive Circuit Test

Function 8: Cranking Test

Function 9: Injector Test

Function 10: Relay Test

Function 11: Analog Signal Test

Function 12: Ignition Signal Test

Function 13: K/CAN Line Data

Language 1: English, Spain, Italy, French, Russian,Deutschland,

Language 2: Portuguese, Poland,Netherlands,Japanese, Korean,Chinese

Why Choose AUTOOL Official Store ?

1. Global Leading Brands ,popular among customers, worth to trust.

2.We are the Only AUTOOL Official Store in Aliexpress!100% original products , best price and Three-year warranty.

3.All products have been passed strict quality test before shipment, make sure high quality. Lifetime Tech Support from AUTOOL Official Store.

4. Fast Shipping from Overseas warehouse(US/RU/PL/ES/DE/FR).Note : When you choose to send items from Europe Overseas warehouse,we will pay Tax for you.If you wanna know more details,please contact with customer service in time.

5. 15-days Local Free Return : Russia,Brazil,France,Spain,Germany,Poland, Netherlands,Italy,UK,USA,Canada,Australia,Israel,South Korea,Saudi Arabia, UAE(contact Seller before return).

6.Support Wholesale Price and Dropshipping.

AUTOOL DM303 Auto Diagnostic Multimeter Car Circuit Tester with K/CAN/Oscilloscope/Cranking/Analog Signal/Injector Test

AUTOOL DM303 automobile diagnostic multimeter is a hand-held new diagnostic oscillometric multimeter integrating digital oscilloscope,digital multimeter, which is designed with the embedded digital control technology.

Tips: For better logistics and transportation, DM303 is not equipped with batteries. You need to buy 4pcs 1.5A batteries locally. Without the batteries,when you disconnect with charging cable,it will be turned off automatically.


DC/AC Voltage Measurement,
DC/AC Current Measurement,
Resistance Measurement,
Frequency Measurement,
Diode Test,
Oscilloscope Test,
Automotive Circuit Test,
Cranking Test,
Injector Test,
Relay Test,
Analog Signal Test,
Ignition Signal Test,
K/CAN Line Data.


Oscilloscope mode is a complete itelligent measurement system,which includes signal input, data sampling, data processing and automatic search, with the waveform test bandwidth of 500KHZ. With a variable sampling frequency, the slowly varying signal amount can be measured. It is applicable to measuring and observing various signals on the automobile circuit during the car overhaul, including the motor drive signal and motor power voltage of new energy vehicle, fuel car engine ignition pulse signal, camshaft signal, crankshaft signal, wheel speed sensor signal, oxygen sensor signal and so on.


Adjustable screen brightness, clear and intuitive data, suitable for various working environments.

12 Languages

As so far, DM303 ontains English, Spain, Italy, French, Russian, Deutschland, Portuguese, Poland, Netherlands, Japanese, Korean and Chinese.


The main unit and accessories can be well stored, easy to carry, and the box is resistant to flling and crashing, effectively protects the instrument.


The instrument can update the application software with SD card and copy the updated file to SD card. 

Multi-functional detection line

C01 - 1 DC connector, connected to the battery clip line
C01 - 2 Terminals for injector test and Automobile relay test
C01 - K K line signal line
C01 - CAN+ CAN+ signal line
C01 - CAN- CAN- signal line
C01 - GND Ground wire
C01 - SIN Sine wave signal line
C01 - S1 5V signal line
C01 - S2 Square signal line
C02 - Battery clip line
C03 - Ignition pulse signal detection line
C04 - 1 DC connector, connected to the battery clip line
C04 - 2 Probe terminal
C05 - Jumper(Black)
C06 - Jumper(Green)
C07 - Jumper(Yellow)

Input impedance for the voltage measurement: it is 2~3MΩ  when the voltage is lower than 160V; it is 10MΩ when the voltage is higher than 160V. 

The maximum input voltage is 1000Vpp; The analog bandwidth is 500KHz; The voltage range is converted automatically; The 10A terminal fuse for current measurement is 15A self-recovery fuse, and the maximum measurable current is 20A; The current measurement mA/uA terminal fuse is 0.5A self-recovery fuse, and the maximum measurable current is 200mA 

Working temperature: 0~40°C(32~104°F) Humidity: ≤75%;

Storage temperature: 10~50°C(14~122°F) Humidity: ≤70%;

Altitude: 2000m.

Recently Viewed Products