Extech MA443 400A True RMS AC Clamp Meter with Non-Contact Voltage Detection, 1.2-Inch Jaw Opening, AC Current Measurement, Continuity, Resistance, Capacitance, Frequency, Data Hold, Backlit Display

The MA443 is a 400A true RMS AC clamp meter and NCV detector. This clamp is a compact meter with Type k temperature measurement. True RMS feature for accurate readings regardless of waveforms. 1.2" (30mm) jaw size fits conductors up to 500MCM. Cat III 600V safety rating. Ce and etl certified. Complete with test leads, three AAA batteries, general purpose Type k temperature probe and pouch.

• Accurate True RMS Measurements - Delivers precise AC current readings up to 400A, even with noisy or distorted waveforms, ensuring electricians and technicians can trust results in real-world conditions.
• Non-Contact Voltage Detection - Features a built-in NCV sensor that quickly identifies live wires without direct contact, adding a layer of safety and convenience during fast electrical troubleshooting.
• Comprehensive Multimeter Functions - More than just a clamp meter, it measures resistance, continuity, capacitance, and frequency, giving you a complete testing toolkit in one compact handheld device.
• User-Friendly Design - Equipped with a backlit display for low-light conditions, data hold for capturing readings, and a slim, lightweight body with 1.2-inch jaw opening that easily fits around conductors.
• Reliable & Portable for Every Job - Ideal for residential, commercial, and HVAC applications; includes auto-ranging, overload protection, and rugged construction to withstand demanding environments.