OTC 3820-13 Low-Range Amp Probe Use connected to a scope or meter or as a stand-alone clamp Long small jaws combined with superior performance are ideal for: ignition coils, fuel injectors, fuel pumps, relays, electric motors, parasitic draw 0-60 ampere range measure to 90 ampere 100 millivolt ampere High accuracy and low noise interference Non-intrusive AC/DC current measurement