Review on GODIAG GT101 Power Circuit Probe Tester Kit, Automotive Electrical System Test Tool for 6V - 40V DC Short Finder, Relay Fuse Tester, Diode Resistance Check - Ideal for Cars, Trucks, and Motorcycles by Leonard Henry

This circuit tester from Godiag is very easy to use and incredibly accurate. The terminals are well made and can be easily connected to the battery poles. There are enough cords so you can use this tool anywhere you need it. The display is clear and easy to read. I've also tried the injector cleaning process and it's a breeze, my car runs much better right after a cleaning cycle. For the price, use this tool once and it's already paid for itself. You can test all your car circuits and confirm what the problem is. Makes diagnosis much faster and easier. Great quality and great price.