Martindale CM55 Clamp Meter

The Martindale CM55 is a compact, high-performance AC clamp meter designed for fast and accurate electrical testing. This easy-to-use digital clamp meter measures AC current, AC and DC voltage, and resistance, and also includes a continuity testing function for everyday electrical diagnostics.

With a precise 10mA resolution, the CM55 clamp meter delivers reliable measurements in a wide range of applications. The auto-ranging function and simple thumbwheel control make operation quick and convenient, even when working one-handed. Readings are clearly displayed on a large 3¾ digit LCD screen with a maximum reading of 3999.

Built for safety and durability, the Martindale CM55 features a CAT III 600V safety rating, making it suitable for residential, commercial, and light industrial electrical work. The 25mm jaw opening allows testing on conductors up to 400A AC, making it ideal for electricians, maintenance engineers, and HVAC technicians.

Key Features

• CAT III 600V safety rating

• Measures AC current, AC voltage, DC voltage and resistance

• 10mA current resolution

• Auto-ranging digital clamp meter

• Continuity testing function

• 25mm jaw size for conductors up to 25mm

• Tests up to 400A AC

• Clear 3¾ digit LCD display

• Sample rate of 2 readings per second

• Hold function for easy result recording

• Low battery indicator

• Auto power off to conserve battery life

• Ergonomic thumbwheel for single-handed operation

The Martindale CM55 clamp meter is an essential tool for domestic electricians, commercial electrical contractors, and HVAC professionals requiring a reliable and portable electrical tester.

Included in the box:

• • Martindale TL16 test leads

  • Soft carry case

  • Alkaline batteries

  • User instruction manual

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