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Quantity
1
Description
The CT100 is a professional automotive circuit tester built for speed, accuracy, and everyday reliability. It helps diagnose electrical issues quickly, identifies polarity, runs load tests, and provides clear audible and visual alerts to ta...
Reviews
4.7
15 ratings
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Owner
Found the tool to be very useful, as you well know you can have voltage, but will it carry a load , just a push of a button and that question is answered, I like that it can let you know if it has power or ground by the color of the light, and what if any a voltage reading, so much is answered in a short time, being able to plug in from both ends makes it even more useful, a great tool and a great price!!!! Wish it had a TOPDON Blue cord just saying 👍
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Donald · June 14, 2026
Very Impressed with the CT100
Great tool! I have other Topdon products, and they have always been great tools. The CT100 is an all-in-one solution. I appreciate the quality and performance.
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Geovany · June 9, 2026
Cable length
Advertised as having a 12' cable, more like 32" unless you intend to stretch it out as hard as you can, but then you'll disconnect the other end, love topdons stuff but this was a disappointment as the working cable length is an important feature when diagnosing
