The CHEPQ P50 Pro Automotive Circuit Tester is an advanced electrical diagnostic tool designed for professional mechanics, automotive electricians, and serious DIY enthusiasts. Supporting 0–45V DC and AC electrical systems, it combines a mini oscilloscope, power probe, voltage tester, signal detector, and LED test light into one compact handheld device. Whether you're diagnosing wiring faults, testing communication lines, analyzing sensor signals, or troubleshooting vehicle e