In stock

Klein Tools CL330 400A AC Auto-Ranging Digital Clamp Meter

Klein Tools
Lifetime Warranty
Free Shipping
Expedited Shipping Available
60 Day Money Back Guarantee


Klein Tools CL330 is an automatically ranging true root mean square (TRMS) digital clamp meter that measures AC current via the clamp, AC/DC voltage, resistance, continuity, frequency, capacitance, and tests diodes via test-leads, and temperature via a thermocouple probe. It features a super bright high visibility dual-line OLED display screen that optimizes viewability in dark or bright environments and when viewed at angles far away from normal to the display.


  • Features best-in-class high-visibility dual-line OLED display screen, which presents information in reverse contrast to standard meters
  • High-visibility in reduced ambient lighting, as well as bright outdoor environments, and at acute angles to display
  • Provides all common measurements such as AC current, AC/DC voltage, continuity, resistance, capacitance, frequency, diodes and temperature
  • True RMS measurement technology
  • Dual-mode display can present simultaneous measurements
  • Bar graph emulates performance of an analog meter for visualizing fast moving events
  • Rugged Klein 'tough meter' industrial design stands up to jobsite demands
  • Includes test leads, K-type thermocouple, 3xAAA batteries and a protective carrying case
  • CAT III 600V safety rating


  • Type: Automatically Ranging TRMS Clamp Meter
  • Application: Voltage Tester
  • Special Features: Best-in-Class High-Visibility Dual-Line OLED Display Screen
  • Batteries: 3 x AAA
  • Jaw Size: 1-1/8" (28.6 mm)
  • Drop Protection: 3.3 ft (1 m)
  • Display: Digital LED
  • Functions: AC current, AC/DC Voltage, Continuity, Resistance, Capacitance, Frequency, Diodes and Temperature
  • Standard: CATIII 600V, Class 2, Double insulation
  • Included: Pouch, 41" (1041.4 mm) Test Leads, Thermocouple, and Batteries
  • Overall Length: 8-21/32" (219.9 mm)
  • Overall Height: 1-39/64" (40.9 mm)
  • Overall Width: 3-1/64" (76.6 mm)
  • Weight: 0.90 lb (0.41 kg)

Package Contents

Digital Clamp Meter AC Auto, 400A

Write Your Own Review
You're reviewing:Klein Tools CL330 400A AC Auto-Ranging Digital Clamp Meter
Your Rating