G Prog Tester (G-Auto Probe) is a multifunction automotive sensor and circuit tester used to diagnose electrical signals, sensors, actuators, and wiring faults in vehicles.
G Prog Tester (also known as G-Auto Probe / Gautoprobe) is a handheld diagnostic tool designed for testing automotive electrical systems, sensors, and actuators. It acts as a smart logic probe that safely checks signals without damaging ECU circuits.
The device uses LED indicators and digital display to show voltage, frequency, and duty cycle signals, making it easy for technicians to analyze sensor output and wiring conditions. It is widely used by auto electricians for quick troubleshooting of electrical faults in modern vehicles.