For troubleshooting automotive electrical circuits up to 24 V, this circuit tester supplies power and ground to activate components such as cooling fans and relays. The integrated digital voltmeter captures min/max voltage readings to identify circuit performance issues, while the short circuit and bad ground indicators provide immediate diagnostic feedback. To facilitate testing across large vehicles, the tester includes a 20-foot (6.1 m) jumper lead set and a 4 mm banana jack for connecting additional accessories.

For troubleshooting automotive electrical circuits up to 24 V, this circuit tester supplies power and ground to activate components such as cooling fans and relays. The integrated digital voltmeter captures min/max voltage readings to identify circuit performance issues, while the short circuit and bad ground indicators provide immediate diagnostic feedback. To facilitate testing across large vehicles, the tester includes a 20-foot (6.1 m) jumper lead set and a 4 mm banana jack for connecting additional accessories.