The USA-003 Probe Circuit Tester Kit is the most revolutionary circuit tester to reduce the diagnosis time in all electrical systems of 12-24V vehicles. It can perfectly perform any kind of service, such as continuity test, diagnose circuit faults, check good and bad ground without losing fuses, activate components on and off the vehicle, detect minimum/maximum voltage, etc. Not only for cars, the USA-003 Powerscan works for trucks, motorcycle, steamship and more. The equipment works with the vehicle's own power supply (12/24 volts), so it does not use its own battery, thus not requiring recharging. Through the drive switch, we can trigger positive power by pressing up or negative by pressing down, always protected by a circuit breaker that prevents damage to both the equipment and the vehicle, has a menu with a fully automatic channel oscilloscope, does not require adjustments axle or trigue, obtaining a diagnostic performance never seen before. With the resistance reading menu it is possible to carry out readings in different resistance scales (in OMHS or K-OHMS ) without adjustments, fully automatic also with continuity test, having an option to deactivate or activate the sound of the device and LED lighting for the equipment test lead.