This new circuit tester from Laser Tools (part number 6115) is versatile, useful and suitable for 6, 12 and 24 volt automotive systems.
More than a standard circuit tester, it features a clear and easy to read digital display that reads from 5 to 28 volts with an accuracy of plus or minus 3%, and bright LEDs to indicate power (red) or ground (green).
The coiled cable stretches out to a useful three metres.