TOPDON CT100 Professional Automotive Circuit Tester with Load Test, LCD Display and Polarity Alerts
Secure transactionCouldn't load pickup availability
Delivery and Shipping
Delivery and Shipping
All orders are shipped between 24 hours or less Monday through Friday from 9:00 am to 6:00pm. Orders placed after 5 p.m. EST will be shipped next business day.
Learn more
Return Policy
Return Policy
At Locksmith Keyless, we prioritize your satisfaction and offer a simple return process. Returns are accepted within 30 days of purchase for unused items in original packaging. Certain items, including OEM keys, Lishi tools, and customized orders, are non-returnable. A restocking fee of up to 30% may apply. For a full list of non-returnable items and more details, please refer to our complete return policy.
For damaged, missing, or incorrect items, please contact us within 48 hours of delivery. All returns require an RMA number. Shipping costs for returns are the responsibility of the customer.
View Full Return Policy
TOPDON CT100 Professional Automotive Circuit Tester with Load Test,...
Description
Description
TOPDON CT100 Professional Automotive Circuit Tester with Load Test, LCD Display and Polarity Alerts
The TOPDON CT100 is a professional automotive circuit tester designed for fast, accurate electrical diagnostics. It identifies polarity, performs load tests, and provides clear audio and visual alerts for easy troubleshooting. Built with a rugged, oil-resistant cable and interchangeable probe and clip, it works on cars, trucks, RVs, and EVs with simple, reliable operation for both professionals and DIY users.
Features:
- Professional Load Test (DC 5-30V, 1.2A Max) for checking battery health, circuit load capacity, voltage drops, and weak connections
- Precision Voltage Testing with digital display measuring 3.3-65V DC and high accuracy up to ±0.1V for reliable diagnostics
- Polarity Protection & Anti-Reverse system with red/green backlight and ± indicators to prevent incorrect connections
- Safe Battery-Free Operation with built-in overvoltage, overheating, and component status protection
- Intuitive Status Light Indicators showing polarity, overvoltage (H), overheating (Hot), and error (ER1) alerts
- Easy Operation with 12.5-foot extended test lead and universal 4mm banana jack support for flexible testing
- Wide Vehicle Compatibility supporting 12V, 24V, and 36V systems for cars, trucks, RVs, and commercial vehicles
Warranty & Updates:
- 1 Year Warranty
Packing List:
- CT100 Circuit Tester
- 2mm Probe
- Alligator Clip
- Adapter
- Carrying Bag
- Quick User Guide
Reviews
Reviews
Q&A
Q&A
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
