Topdon

CT100 Auto Circuit Tester with Load Test, LCD & Polarity Alerts

Model: FLV912

Mfr. No.: CT100

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  • Topdon CT100 CT100 Auto Circuit Tester with Load Test, LCD & Polarity Alerts

Colour, sizing or style depicted in some photos may not be exactly as described.
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$50.99 / Each

Ships in 3-6 days

Shipping times are based on information available at the time of order and are subject to change.


FREE delivery on all orders over $150 when shipping to an eligible location.

Buy More, Save More

Quantity Price per
2-3 $48.44
4-9 $46.91
10-17 $45.38
18 or more $44.36

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Description

  • Features a professional load test function (DC 5–30V, 1.2A Max)
  • Hold the button for 5 seconds to check battery and circuit load capacity, quickly identifying aging batteries, weak connections, and voltage drops for faster, more accurate repairs
  • Equipped with a clear backlit digital display, the CT100 measures DC voltage from 3.3–65V with 0.1V resolution (±0.1V accuracy from 3.3–60V; ±0.2V from 60–65V)
  • Delivers dependable performance for both professional technicians and serious DIY users
  • Dual-colour backlighting (red for positive, green for negative) and on-screen ± indicators activate instantly when the probe contacts a circuit
  • Intuitive feedback helps prevent reverse connections and protects sensitive vehicle electronics during testing
  • Battery-free operation eliminates maintenance and downtime while improving safety during testing
  • Integrated protections include overvoltage alerts, overheating warnings, and component status monitoring for dependable performance in daily automotive diagnostic work
  • Colour-coded backlight indicators confirm polarity instantly, while additional alerts display overvoltage (“H”), overheating (“Hot”), and lamp abnormality (“ER1”) status—keeping key operating conditions visible at a glance during testing
  • The 12.5-foot extra-long test cable improves access to hard-to-reach areas without repositioning the tester
  • Universal 4mm banana jack connections support interchangeable probes and clips, enabling flexible testing across cars, trucks, RVs, and other vehicles
  • With a 3.3–65V testing range, this versatile tester supports 12V, 24V, and 36V vehicle systems, making it ideal for cars, trucks, RVs, commercial vehicles, and more
  • Perfect for checking fuses, verifying connector voltage, testing circuit integrity, tracing wiring issues, and diagnosing starting-related electrical faults

Includes

  • CT100 Circuit Tester
  • 2mm Probe
  • Alligator Clip
  • Adapter
  • Carrying Bag
  • Quick User Guide

Specifications

Voltage

30 V

Testing Range

1.2 Amps

Dimensions

1.5" W x 6" L x 0.75" H

Weight

0.4 lbs.

UPC

810139303909

Country Of Origin

China