• Integrated Bluetooth® connects with most Android™ devices to transmit readings for remote viewing
  • Works with free Android App to display large, easy to- read values for: AC/DC voltage, AC/DC current, capacitance, resistance, frequency, diode test, and temperature (Type-K & infrared), up to 30’ (10m) away
  • Ranges and accuracy
    • AC/DC Current 0.1 to 1000A; ±2.8%
    • AC/DC Voltage 0.1mV to 1000V; AC: ±1.5%, DC: ±2.8%
    • Resistance 0.1 to 40MΩ; ±1.5%
    • Capacitance 0.001nF to 40,000μF; ±3.0%
    • Frequency 0.001kHz to 4kHz; ±1.5%
    • IR Temperature -58 to 518˚F (-50 to 270˚C); ±2.0% rdg or ±4˚F (2˚C)
    • Type K Temperature -4 to 1400˚F (-20 to 760˚C); ±(3% rdg + 9°F (5˚C))
  • Non-contact IR Thermometer with laser pointer
  • True RMS Current and Voltage measurements
  • Peak hold captures inrush currents and Transients
  • 1.7" (43mm) jaw opening for conductors up to 750MCM or two 500MCM
  • 4000 count backlit LCD display
  • Autoranging with manual range button
  • Data Hold, Min/Max and Auto Power off

What's in the Box

  • CAT IV test leads
  • 9V battery
  • General purpose Type K probe
  • Pouch case


The Extech EX850 clamp meter is a CAT IV 1000A True RMS clamp-on multimeter that features a built-in infrared thermometer with a laser pointer. Ideal for industrial applications, the EX850 is capable of accurate electrical measurements of AC/DC current, AC/DC voltage, resistance, capacitance, and frequency. Additionally, the EX850 includes tests for inrush, diode and continuity. Temperature measurements can be made via Type-K probe or non-contact infrared.

The Extech EX850 features a Bluetooth transmitter which utilizes the ExView app to connect with most Android™ devices to transmit readings for remote viewing.

The EX850 features 1.7" jaws, large enough for cables up to 750MCM (or two 500 MCM cables). The rugged, 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 the Extech EX850 clamp meter include: autoranging with manual range button, Data Hold, Min/Max, Auto Power Off, and Peak Hold that captures inrush currents and transients.


This product can be used in the following applications: