Close-up view of the Power Probe probe touching a relay in the vehicle’s under-hood fuse box, displaying 11.49V on the digital screen. This confirms whether the relay socket is receiving proper power.

Typical use cases:

  • Identifying which fuses are live and which are not
  • Testing relay operation by sending power directly to the relay coil
  • Diagnosing intermittent electrical faults after an accident or flood
  • Locating parasitic battery drain circuits

This kind of hands-on circuit diagnosis saves hours compared to using a multimeter alone.