For testing voltage amplitude, duty cycle and speed (Hertz), quickly and without fear of damage to the circuit that is being tested
Digital read out and flashing LED's give a clear indication of the type of signal or voltage being seen, so avoiding the confusion that can often be brought about by the use of a multi-meter
Specially designed for the testing of automotive sensor signals and voltages
Built-in LED torch, which illuminates the area of work, thereby significantly reducing the chance of probing the wrong wire