Klein Tools CL120 front view with a clear digital display for precise readings
Klein Tools CL120 close-up of the clamp jaw enabling quick AC current measurements
Klein Tools CL120 NCVT test mode performing a non-contact voltage check
Klein Tools CL120 backlit LCD showing measurements in low light
Klein Tools CL120 test leads and carrying case for easy transport
Klein Tools CL120 auto-ranging technology ensures accurate readings across ranges
Klein Tools CL120 data hold and max features for efficient data capture
Klein Tools CL120 magnetic hanger compatibility enables hands-free operation
Klein Tools CL120 battery compartment with included AAA batteries

KLEIN TOOLS

Klein Tools CL120 Digital Clamp Meter – Auto-Ranging 400 A AC, AC/DC Voltage, Resistance, Continuity, NCVT

High-performance tools and home improvement made for confident daily results

$83.78

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Why customers choose TaskHolt Tools

Overview

The Klein Tools CL120 Digital Clamp Meter is a versatile, auto-ranging instrument designed for electricians who demand reliability on the job site. The clamp handles up to 400 A of AC current and NCVT without breaking the circuit, while the test leads cover AC/DC voltage, resistance, and continuity. Auto-ranging minimizes guesswork and speeds up setup, helping you move from measurement to decision with confidence. Part of Klein Tools’ Test and Measurement line, this meter reflects a long history of American-made, professional-grade craftsmanship that stands up to daily field use.

The design emphasizes real-world usability: a backlit display for legible readings in dim basements or attic spaces; a clamp jaw that integrates non-contact voltage testing for quick safety checks; and a balanced feel that reduces fatigue during long surveys. With a dedicated test lead holder and optional magnetic hanger for hands-free operation, the CL120 is built to adapt to multi-task environments where reliability matters as much as speed.

What it can measure

  • AC current via the clamp
  • NCVT via the jaw
  • AC voltage via test leads
  • DC voltage via test leads
  • Resistance via test leads
  • Continuity via test leads

Design and usability

  • Backlit LCD for clear readings in low-light environments
  • Auto-ranging technology quickly selects the appropriate measurement range
  • Data Hold and Max functions aid data capture and review
  • Auto-power off after 10 minutes helps conserve battery life
  • Test lead holder on the side and optional magnetic hanger enable hands-free operation

What you get

The CL120 arrives with a complete set for electricians: a carrying case, test leads with CAT III/CAT IV safety caps, a user instruction guide, and 3 AAA batteries. This kit is ready to support panel upgrades, wiring checks, diagnostic visits, and routine maintenance tasks, offering a practical balance of precision and field-ready durability.

FAQ

Q: What can the Klein Tools CL120 measure?

A: It measures AC current via clamp, NCVT, AC/DC voltage, resistance, and continuity using test leads.

Q: Does the CL120 help conserve battery life?

A: Yes, auto-power off after 10 minutes helps save battery life and supports efficient use.

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