Repair testing / 8 sub-categories
Automotive Repair & Testing Equipment
Diagnostic tools for leak tracing, visual inspection, battery health, circuits, pressure, spark, oil, and electrical readings.
Repair maintenance / 6 sub-categories
Automotive Repair & Maintenance Equipment
Service equipment for fluid exchange, A/C diagnostics, refrigerant recovery, oil handling, and cooling-system work.
Carbon cleaning / 3 sub-categories
Carbon Deposit Cleaning Equipment
Carbon-removal equipment for injectors, intake valves, components, and workshop cleaning jobs.
Wheel tire / 3 sub-categories
Wheel and Tire Repair Equipment
Equipment for alignment, lifting, tire repair, tire mounting, and service-bay workflows.
Tool storage / 1 sub-category
Workshop Tool Storage Series
Storage products for keeping workshop tools, test equipment, and accessories organized.
EV charging / 1 sub-category
Electric Vehicle Charger Series
EV charging products for new-energy vehicle service, workshop use, and installation scenarios.
OBD diagnosis / 4 sub-categories
OBD Diagnostic Tools
OBD-related testers, cable products, used-car inspection tools, and key frequency diagnostics.
Accessories / 8 sub-categories
Accessories
Replacement parts, adapters, consumables, cables, and add-ons for major diagnostic and service equipment.
Schaffler H.W Jean Louis (verified owner) –
Item received as discribed and descriptions are match to what I received.
I will recommend this product.
Jannette Wilmes –
Great quality, matches the picture, fast shipping!
Temmink –
The features are comprehensive! Great tool!
Kragh –
Everything works fine and is the most functional product I’ve ever bought
HRISTOS TALLIDIS (verified owner) –
Exelent instrument
Steve Bradic (verified owner) –
Great product, does everything advertised, great addition for our workshop. We already have injector cleaner as well and Will be buying more AUTOOL products.
Christensen –
Cheap and good quality! Good tools! I had some problems due to my operator error and they helped me out quickly
Daspinar –
Outstanding equipment, fully functional, the oscilloscope function is the most important for me, I can check if the signal is present. I will repurchase AUTOOL products
CONSTANTINOS KOUROUFEXIS (verified owner) –
Nice TOOL. Easy to use many functions
Peternal –
It has a portable oscilloscope and many built-in test features. This includes auto-range, a built-in frequency counter, a function generator, and several built-in test functions that use additional ports and cables to power the car battery while making measurements. Most of these functions can be done in other ways, but this setup makes it simple.
Samuel Vandenberghe (verified owner) –
The multimeter works like how it should be. When you measure it¡¯s a bit lag. The weight is very light ( feeling like a cheap device in the hands) and the little stand in the back doesn¡¯t work this it should be it keeps on falling open. A nice thing is you get a lot of adapter and measure cables. It¡¯s really worth it¡¯s price and recommended for DIY and semi professional.
Samuel Vandenberghe (verified owner) –
The multimeter works like how it should be. When you measure it¡¯s a bit lag. The weight is very light ( feeling like a cheap device in the hands) and the little stand in the back doesn¡¯t work this it should be it keeps on falling open. A nice thing is you get a lot of adapter and measure cables. It¡¯s really worth it¡¯s price and recommended for DIY and semi professional.
Erik Haris –
I arrived super well, I already tried it and work on a Thousand Wonders, the best tool you can buy for use at home, staff or either a workshop.
Jonathan Jonah –
The DM303 test is very fast and accurate, easy to use and measures many products, I’m very happy with it!
JACK –
not tested but looks very good…I recommend
Gergely Szab¨® (verified owner) –
understandable simple
Ethel Horace –
If you don’t have a power probe and a scope buy this tool. The leads are well made. and there are many of them. The impedance is 3 meg ohms on the scales i tested. That is very important when checking sensors. The scope is better than a graphing multimeter. It will display voltage patterns for coil on plug Toyota. It is not as good as an expensive scope but is very useful for many diagnostic purposes. The battery leads are long and it can be used for some power probe type functions.
Pasquale (verified owner) –
Very good everything
Patrick S. (verified owner) –
The product works great, it comes with lots of accessories. I use it almost every day in the workshop now.
Customer support via WhatsApp is very helpful.
Highly recommended.
Mark Jhun C Bautista –
It is a great helper in my garage and is definitely worth recommending to every car lover!
ahmed saeed –
Good thanks
Labros B. (verified owner) –
You can do a lot of measuring. It¡¯s amazing.
Adrean bravo –
I bought this meter for the scope function, and it is great . I love the fact that it has all I need in the box .. my go to box for quick electrical diagnostics before pulling out the pico or ats ,
It has a similiar power probe function . It also has amp meter and ohm meter , but the great part for me is the scope function . I can check signals to see if they are there before digging deep . Also it adjust the time base and the voltage scale . Great meter well worth it and the price is the good part too thanks autool
JessCheah –
Very good??????
Tadas Sviderskis –
Reliable relay testing, efficient test of triggers and injectors, accurate analysis of automotive circuits, accurate analysis of analog signals, versatile and efficient, convenient and easy to use, using high-quality materials, reliable test of K/CAN systems,
William –
Looks great out of the box. Appears to be well built. Love it
Logan prescott –
Fast shipping, good quality£¡£¡£¡
Wendell Isaac –
This multimeter is worth the price maybe more and performs very well. I keep this one in my garage and use my smaller cheap one in my tool roll for the motorcycle. If you are looking for a quality multimeter that won’t break the bank and is reliable you’ve found it.
Suzanne Nelly –
My husband loves this meter because its features, accuracy, and the price.
Gally –
I use it for general automotive repair work.
It is easy to use with a bright display.
A lot of instrument for the money.
Lena Keppel –
This DM303 really surprised me! Not only is it a multimeter, but it can also be used as an oscilloscope, and it even detects CAN and K-wire signals, and tests injectors with no problem at all.
Dominic Barrett –
The DM303 detects accurately, has lots of accessories, and is very satisfactory!
?eljko Supi (verified owner) –
AUTOOL DM303 Diagnostic Multimeter Car Circuit Tester
Przemys?aw Maziewski –
I¡¯ve received the product and everything¡¯s just as described. The quantity is correct, the quality is great, and it works perfectly with spot-on accuracy. Packaging was solid and professional, and shipping was super fast. Very satisfied overall!
j411suka –
Works fine. Good product for trouble shooting. Managed to confirm my car’s ignition coil fault using this tool. This tool will prevent unnecessary parts replacement if we know how to use it to find the cause of the problems.
Jason Symons –
I dip into all sorts of repair from small engines to power sports to automotive. For the price and for my budget so far this tool has been a good investment.
Stipe Loncar (verified owner) –
excellent
Radu Gafenco –
Simple, install 2A battery to use. First use requires at least 2 hours of charging!There are two types of battery use: dry cell and lithium cell
Mark Pozoysky –
Functioning well ??The waveform test has a bandwidth of 500 kHz and uses variable sampling frequency to measure slowly changing signals.
Bill Benedict –
The quality is excellent, the texture is very good, the detection is very accurate, and the accessories are very complete. I have used it many times, and it works perfectly.
Matt Sophy –
My new favorite tool in my tool
Elroy Carnegie –
Rechargeable internal battery using USB C, has worked as good as any of my other meters so far. I haven’t had the opportunity to try any of the other features on it other than the volt and ohm functions, but both of those work well.
Cerdic –
The AUTOOL DM303 is very easy to use, with accurate measurements and comprehensive functions. Whether it is voltage, current or resistance detection, the display is clear and intuitive, and the operation is also very simple. It is very cost-effective and very suitable for car owners and maintenance technicians.
Gabriele Moretti –
Reliable relay testing, efficient ignition and injector testing, accurate automotive circuit analysis, accurate analog signal analysis, versatile and efficient, convenient and easy to use, high-quality materials, reliable K/CAN system testing,
Adam –
It’s very good; I liked its solid construction, its fast and accurate measurements, the very useful ignition function, as well as the oscilloscope function.
Luke –
I’ve been using it for a month and it hasn’t let me down, it’s been wonderful, and today it was very helpful in detecting a problem. I highly recommend it.
Noah –
Reliable relay testing, machine trigger testing, and efficient injector operation Precise automotive circuit analysis and analog signal analysis Wide-range and efficient performance Convenient and easy operation High-quality materials Reliable K/CAN test system
Bill –
I’ve been using the DM303 multimeter and it’s been a great help. The 2.8-inch color screen is clear and easy to read in different working conditions. The oscilloscope works well for checking automotive signals, and the auto range and true RMS make measurements accurate. It comes with plenty of test cables, supports multiple languages, and the plastic toolbox keeps everything organized and protected. Very reliable for auto repair work.