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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
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 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 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 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 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 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

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

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Product details

Management number 210911725 Release Date 2026/04/04 List Price US$35.88 Model Number 210911725
Category
  1. Industrial & Scientific
  2. Test, Measure & Inspect
  3. Electrical Testing
  4. Current Testers
  5. Clamp Meters

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.
UPC 793950374436
Color Green
Model MA443
Brand Name Extech
Style Name MA443
Unit Count 1.0 Count
Item Weight 9.28 ounces
Manufacturer Extech
Power Source Battery Powered
Item Dimensions 3 x 1.6 x 9 inches
Measurement Type Multimeter
Included Components Test leads, 3 AAA batteries, Type K temperature probe and pouch
Warranty Description CN
Upper Temperature Rating 1832 Degrees Fahrenheit
Global Trade Identification Number 00793950374436

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

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

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

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

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

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

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

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