Select from the wide range of metric adapters to suit your engine, switch on, turn engine over and record the pressure. Press the Lock button and it store the data, repeat process on each cylinder. Press one button to completely reset to start again.
Everything fitted together securely and the readings closely matched my analog gauge.
The kit is in a well designed storage box.
The adapters fit well into the extension lines.
Instructions are OK, pretty much repeat the listing.
The display is big enough and lit. With my aging eyes it could be bigger, but it is adequate.
Shame it's not rechargeable as I wouldn't store with batteries fitted for a long period.
One of those tools which is occasionally vital, so happy to add this to my garage.
With regard to price, it's a lot cheaper than a pro device but also a lot more expensive than a traditional gauge, so I'd say you are paying for the ease and convenience of having everything in one box and the easy way to store data.