Power Probe 4 Circuit Tester: -Activate electrical components -Power feed test displays -Electronic fuel injector testing -3 Voltmeter modes -High voltage capability up to 200V -Display signal frequency -Automatic voltage drop indicator -Control module driver test -Electronic circuit tester mode -Circuit breaker resetting -Removable probe tip allows use of accessories -Extra 20ft extension lead available Learn more in the comments below. | Power Probe

This Is The Maestro — Power Probe’s Most Capable circuit tester At SEMA, David Barden gave a full walkthrough of the Power Probe Maestro, our most advanced and feature-packed circuit tester to date—and the evolution of what technicians loved about the Power Probe 3. ⚡ Why The Maestro takes diagnostics to a whole new level: -Full multimeter capabilities: DC volts, AC volts, resistance, frequency, pulse width & duty cycle -Guided diagnostics and fuel injector testing built right in -Still performs