• AC/DC voltage range: 0.1mV to 1000V
  • AC/DC current range: 0.1µA to 10A
  • Resistance range: 0.1Ω to 40MΩ
  • Capacitance range: 0.01nF to 100µF
  • Frequency (electrical) range: 4Hz to 1kHz
  • Frequency (electronic) range: 0.001Hz to 10MHz
  • Temperature range: -4 to 1382°F
  • Basic accuracy: ±0.5%
  • Diode open circuit voltage of 2.8V DC
  • Relative/Data Hold
  • Double molded for waterproof protection (IP67)
  • Auto power off with disable feature
  • CAT IV-600V safety rating for industrial applications
  • Case and basic accessories included

What's in the Box

  • Double molded test leads
  • Magnetic hanging strap
  • Carrying case
  • 9V battery
  • Type K bead wire temperature probe


The industrial quality Extech EX505 is a true RMS multimeter featuring 1000V input protection over all ranges. The EX505 was designed to handle the rigors of field testing in adverse conditions including drop-tests from 6 feet as well as double molded housing for waterproof protection to IP67 standards. The EX505 also includes a CAT-IV-600V safety rating for industrial applications.

The Extech EX505 true RMS multimeter is a versatile instrument capable of accurately measuring AC/DC voltage, AC/DC current, resistance, capacitance, frequency and temperature. The basic accuracy of the meter is ±0.5%. Results are displayed on a large 4000-count LCD.

Additional features of the Extech EX505 true RMS multimeter include: diode and continuity tests, Data Hold and Relative, an auto power off with disable feature, and dual sensitivity frequency functions (electrical/electronic).

To increase the versatility of the instrument, the Extech EX505 is also available in kit form, which includes:

  • Extech DV25 Dual Range AC Voltage Detector
  • Extech TL808 Test Lead Kit



Test Leads

Current Clamps




Please consider these optional accessories.

In Stock

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