The CHEPQ P55 Power Probe Tester is a professional automotive electrical diagnostic tool designed for mechanics, automotive electricians, fleet maintenance technicians, and DIY vehicle owners. Supporting 12V and 24V electrical systems, this intelligent circuit tester helps diagnose electrical faults, locate short circuits, activate components, and verify wiring with speed and accuracy. Whether you're troubleshooting a faulty relay, checking battery voltage, tracing damaged wi