TOPDON CT100 Circuit Tester
The TOPDON CT100 is a circuit tester for 12 V, 24 V and 36 V electrical systems, including cars, trucks and RVs. It measures DC voltage from 3.3 V to 65 V with a resolution of 0.1 V, and carries out load tests from 5 V to 30 V at up to 1.2 A.
A dual-colour backlight shows polarity, red for positive and green for negative, and the tester gives overvoltage and overheat alerts. It needs no batteries, as it is powered from the circuit under test.
The 12.5 ft (approximately 3.8 m) test cable uses 4 mm banana connections, so probes and clips can be swapped to suit the job.
Key Features
- DC voltage measurement
- Built-in load testing
- Dual-colour polarity indication
- Overvoltage and overheat alerts
- Battery-free operation
- Interchangeable 4 mm probes and clips
- 3.8 m test cable
- 12, 24 and 36 V systems
Ideal For
- Automotive technicians checking circuits, voltage and polarity.
- Workshops working on cars, trucks and RVs.
- Technicians who need a simple tool for load testing circuits.
