Extech EX-820
1000A True RMS AC Clamp Meter with Built-in Non-contact IR Thermometer

  • Non-contact Infrared Temperature measurements with laser pointer
  • True RMS Current and Voltage measurements
  • Peak hold captures inrush currents and Transients
  • Multimeter functions include AC/DC Voltage, AC Current, Resistance, Capacitance, Frequency, Diode, Type K Temperature and Continuity
  • 1.7" (43mm) jaw opening for conductors up to 750MCM or two 500MCM
  • 4000 count backlit dual display
  • Features include Data Hold, Min/Max, Auto Power off
  • Auto ranging with manual range button
  • Available in alternate configurations:
    • with AC Current function - see: Extech EX810
    • with AC/DC Current function, True RMS and general purpose type K probe - see: Extech EX830
Click here for a larger image of the Extech EX820Click for larger image
Extech EX820
Product Information
Datasheet 380 KB
Manual 628 KB
PDF Help
  Range Basic Accuracy
IR Temperature (IR) -58 to 518ºF
-50 to 270ºC
±2.%0 rdg
or ±4ºF/±2ºC
AC Current 0.1 to 1000A ±2.5%
AC Voltage 0.1mV to 600V ±1.5%
DC Voltage 0.1mV to 600V ±1.5%
Resistance 0.1 to 40MΩ ±1.0%
Capacitance 0.001nF to 40,000μF ±3.0%
Frequency 0.001 to 4kHz ±1.5%
Type K Temperature -4 to 1400ºF
-20 to 760ºC
± (3%rdg + 9ºF)
± (3%rdg + 5ºC)
Ordering Information
Model Description Buy Online Price
EX820Extech EX-820 Clamp DMM + Infrared Thermometer TRMS 1000 AMP AC Buy NowSale $149.39
(Reg. $179.99)
EX820-NISTLExtech EX820-NISTL 1000 AMP AC Clamp DMM + Infrared Thermometer TRMS with Limited NIST Buy Now$254.99
Optional Configurations
EX810Extech EX810 Clamp DMM + Infrared Thermometer 1000 AMP AC Buy NowSale $121.49
(Reg. $149.99)
EX810-NISTLExtech EX810-NISTL 1000A AC Clamp DMM + Infrared Thermometer Limited NIST Buy Now$224.99
EX830Extech EX-830 Clamp DMM + Infrared Thermometer TRMS 1000 AMP AC/DC Buy Now $219.99
EX830-NISTLExtech EX-830-NISTL 1000 AMP AC/DC Clamp DMM + Infrared Thermometer TRMS with Limited NIST Buy Now$294.99
Included Accessories
  • 1 - Test leads
  • 1 - 9V battery
  • 1 - Case
  • 1 - General purpose Type K probe
Optional Accessories
480172Extech 480172 Line Separator 3 Prong Buy NowSale $13.91
(Reg. $15.99)

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.