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400A AC/DC Dual-Display Auto-Ranging Digital Clamp Meter - Klein Tools

Part #: CL490

The Klein Tools CL490 is a professional-grade 400A AC/DC Dual-Display Auto-Ranging Digital Clamp Meter engineered for precise electrical measurements in demanding automotive and industrial environments. This versatile tool provides accurate, reliable data for troubleshooting, maintenance, and installation tasks, making it an essential diagnostic instrument for technicians.

Key Features

  • Dual-Display Design: Simultaneously view two measurements on separate, backlit reverse-contrast LCDs, enhancing readability and efficiency in various lighting conditions and tight spaces.
  • True RMS Accuracy: Delivers accurate AC/DC current and voltage measurements, crucial for confidently working with non-linear loads often found in modern electrical systems.
  • Comprehensive Measurement Capabilities: Measures AC/DC current via the clamp, and AC/DC voltage, resistance, continuity, frequency/duty cycle, DC microamps, diode test, and capacitance using the included test leads.
  • Integrated Temperature Measurement: Features a thermocouple input for convenient temperature readings, adding further diagnostic capabilities for motors, HVAC systems, and other components.
  • Robust Construction: Designed to withstand daily job site abuse, including drops from up to 6.6 feet (2 meters), ensuring long-term durability and reliability.

Applications

The Klein Tools CL490 clamp meter is ideal for a wide range of professional applications. Automotive technicians can utilize it for diagnosing complex electrical issues, checking battery drain, testing charging systems, and troubleshooting vehicle sensors and components. In industrial settings, this meter is invaluable for performing preventative maintenance on machinery, analyzing power consumption, verifying motor performance, and maintaining control systems. Its comprehensive feature set supports electrical work in commercial, residential, and specialized technical fields.

Specifications

  • Manufacturer: Klein Tools
  • Model Number: CL490
  • Drop Protection: Withstands drops from 6.6 feet (2 meters)
  • Included Accessories: Right-angle input test leads, thermocouple, storage pouch, instruction manual, 2 x AA batteries
Only 2 left in stock - order soon
List: $174.99 Save: $52.24

$122.75

Add to Cart:
  • Klein Tools
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    Klein Tools Homepage
  • Model: 426227
  • Shipping Weight: 1.41lbs
  • UPC: 092644694271
  • Manufacturers Part #: CL490
  • Manufactured by: Klein Tools
  • Also Known As: KLECL490

This product was added to our catalog on Friday 15 May, 2026.

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