Extech MA440 Clamp Meter - 400A AC

Measure AC current and various other electrical parameters with Extech's MA440 clamp meter.

Compact and lightweight, the MA440 has 30mm jaw opening and can fit comfortably around conductors up to 500MCM. Once clamped, it can measure AC current up to 400A with maximum resolution of 1mA and basic accuracy of ±2.0%.

The Extech MA440 also doubles up as a basic electrical multimeter - using the supplied test leads, it can be used to measure resistance, capacitance, voltage and frequency. A built-in non-contact voltage detector is also included for verifying if a system is live or not before connection.

This clamp meter also comes with various additional functions such as a data hold function which temporarily freezes the display, automatic power off (can be disabled) and a large, backlit LCD screen.

Extech MA440 AC Clamp Meter Key Features

• Pocket-sized AC clamp meter with jaw opening of 30mm
• Built-in non-contact AC voltage detector
• Measure AC current up to 400A
• Measure AC/DC voltage to 600V
• Resistance measurements to 40MΩ
• Capacitance measurements to 100μF
• Frequency measurements to 1MHz
• Duty cycle, continuity and diode functions
• Relative mode for capacitance measurements
• Data hold function freezes values shown on display
• Automatic power off with disable facility
• Low battery indicator
• Large backlit LCD display
• CAT III 600V rated

What's Included?

• Extech MA440 AC Clamp Meter
• Test Leads
• 3 x AAA Batteries
• Carrying Pouch