AUTOOL Digital Compression Tester Automotive Compression Gauge 0-426PSI 0~29bar for Petrol Engine Cylinder Compression Test Tool Kit with Adapters & Hoses, 6 Data Saving, Backlit Screen

Finally got to use this and damn the standard gauge could not pick up the lows like this did, 2003 1500hd 6.0 bad hesitation and the normal gauge was like " mmmm 55 psi so nothing to see here" in the digital show us the highs, lows and everything between and we dropped all the way down to 22 psi. Yeah I know the other gauge is bad but Der thats why I bought this one. More fitting could be desired but for what this costed, I was able to buy an adapter that let's me use all of the old fittings. Very nice to have for the people that need real technical data to work with.

Works well for the cost. Like how it shows sample time as well as peak and min. But it doesn’t data log.

So overall this unit is accurate… very accurate!!! Tested it against four other compression testers. HOWEVER! The title for the listing is slightly deceptive. You could possibly even call this my fault for not looking at the photos more thoroughly… but, this unit does not double as a leak down tester. The title contains the words “cylinder leak down” which is a bit misleading as there is nowhere to attach shop air to this unit for it to be able to perform leak down tests. I thought it might be too good to be true for the price… even still, considering what he good compression tester cost and for as accurate as this is, I still think it’s a great value…. I would give the products five stars, but I have to give it four for the inconvenience…. If I ever see that the title is changed, I will then change my reading to 5 stars.

Great

Nifty take on an age old diagnostic technique. The ability to read and store compression data eliminates the need for a pencil and paper!

Wayyy better than the gauge type!

Easy to use

This is working with no issues recommend it

Purchased the product on a discounted sale, we'll got the surprise. The digital device missing from the box, very well scammed. To top it off there is no replacement for this. Return was accepted within some minutes without any hassle