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  • Ranges:
    • AC current: 0.1 to 1000A
    • AC voltage: 0.1mV to 600V
    • DC voltage: 0.1mV to 600V
    • Resistance: 0.1 to 40MΩ
    • Capacitance: 0.001nF to 40,000µF
    • Frequency: 0.001 to 4kHz
    • IR Temperature: -58 to 518°F
    • Type-K temperature: -4 to 1400°F
  • Distance to spot : 8:1
  • Laser pointer for IR temperature
  • Peak function captures inrush currents and voltage transients
  • Data Hold 'freezes' data in display
  • 1.7 inch jaw opening for conductors up to 750MCM or two 500MCM Auto power off
  • Autoranging with manual range button
  • 4000 count backlit dual display

What's in the Box

  • Test leads
  • 9V battery
  • Case
  • Type K probe (-4 to 482°F)


The Extech EX820 clamp meter & IR thermometer is a 1000A True RMS clamp-on multimeter that features a built-in infrared thermometer with a laser pointer that's an excellent troubleshooter for locating hot spots and overheating motors. The EX820 is a versatile instrument capable of accurate measurements of AC current, AC/DC voltage, resistance, capacitance, frequency and temperature via a type-K probe. The EX820 features 1.7" jaws, large enough for cables up to 750MCM (or two 500 MCM cables). The ergonomically designed double-molded housing offers a better grip for one-hand operation and results are shown on the backlit, 4000 count dual LCD display.

Additional features of Extech EX820 clamp meters include: diode test, audible continuity beeper, autoranging with manual range button, Data Hold, Min/Max, Auto Power Off, and Peak Hold that captures inrush currents and transients.

The meter is available with limited NIST certification which covers all functions except IR temperature.