• Ranges:
    • AC/DC current: 0.1 to 1000A
    • AC/DC voltage: 0.1mV to 1000V
    • Resistance: 0.1 to 40MΩ
    • Capacitance: 0.001nF to 40,000µF
    • Frequency: 0.001 to 4kHz
    • IR Temperature: -58 to 518°F (-50 to 270°C)
    • Type-K temperature: -4 to 1400°F (-20 to 760°C)
  • CAT IV-600V safety rating
  • Laser pointer for IR temperature
  • True RMS Current and Voltage
  • 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

  • CAT IV test leads
  • 9V battery
  • Type K probe
  • Pouch case
  • Professional test lead set


The Extech EX845 clamp meter & IR thermometer 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 EX845 is capable of accurate electrical measurements of AC current, DC current, AC/DC voltage, resistance, capacitance, and frequency. The ES845 takes temperature measurements via Type-K probe or infrared.

The Extech EX845 features a Bluetooth transmitter with MeterLink that wirelessly transmits voltage and current readings to select FLIR thermal imaging cameras (b60, i60, B-Series and T-Series) to incorporate meter readings with thermal images.

The EX845 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 EX845 clamp meter include: diode test, autoranging with manual range button, Data Hold, Min/Max, Auto Power Off, and Peak Hold that captures inrush currents and transients.

The Extech EX845 clamp meter & IR thermometer comes with a professional test lead set that includes:

  • (2) 42" (1m) PVC lead extensions w/shrouded banana plugs at both ends
  • (2) Modular 4" (102mm) heavy duty test probe handles w/0.16" (4mm) banana plug tip
  • (2) Standard size alligator clips w/ insulated rubber boot
  • (2) Extra large, double-insulated, alligator clips w/ sharp teeth for piercing insulated wire. Jaws open to 0.8" (20mm)


This product can be used in the following applications: