Pico Scope automotive oscilloscopes for measuring currents between 10 mA and 60 A. This enables the Pico Scope to display current waveforms for fuel injectors and fuel pumps. The current clamp has two range settings, set by a slider switch on the handle of the probe. 1) 1 mV/10 mA (100 mV = 1 A) Use this for testing currents up to 20 A 2) 1 mV/100 mA (10 mV = 1 A) Use this for testing current up to 60 A