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Extech EX520A True RMS Multimeter

Extech Instruments
SKU: EXTEEX520A
  • True RMS, rugged IP67 multimeter with CAT IV 600V safety rating
  • Low pass filter and LoZ mode for more reliable readings on site
  • Measures up to 1000V and 20A, plus temperature via Type K input
More Info
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Extech EX520A True RMS Multimeter

The Extech EX520A True RMS Multimeter is a heavy-duty industrial DMM designed for electrical and maintenance testing in demanding environments. It measures AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, temperature, diode, and continuity, with True RMS measurement for reliable readings on non-sinusoidal waveforms.

Built for site use, the EX520A is rated CAT IV 600V and features an IP67 waterproof and dustproof housing with 2m drop protection. A low pass filter helps maintain accuracy in noisy electrical environments, while LoZ (low impedance) mode helps reduce false readings caused by ghost voltages.

The 6000-count backlit LCD supports clear readings, with useful functions including relative mode and data hold. The meter measures up to 1000V AC/DC and up to 20A current, and supports Type K temperature measurement from -45 to 760°C for wider troubleshooting and verification tasks.

Extech part number: EX520A

Key Features

  • True RMS industrial multimeter for reliable readings on non-sinusoidal waveforms
  • CAT IV 600V safety rating
  • IP67 waterproof and dustproof housing with 2m drop protection
  • Measures up to 1000V AC/DC voltage
  • Measures AC/DC current up to 20A
  • Low Pass Filter for improved accuracy in noisy electrical environments
  • LoZ mode to reduce false readings caused by ghost voltages
  • 6000-count backlit LCD display
  • 0.09% basic accuracy
  • Type K temperature measurement from -45 to 760°C
  • Measures resistance, capacitance, frequency, duty cycle, diode, and continuity
  • Relative mode and data hold functions
Specification
  • AC Current - 0.1 µA to 10 A
  • AC Voltage - 1 mV to 1000 V
  • Capacitance - 0.01 nF to 99.99 mF
  • Continuity - Yes
  • DC Current - 0.1 µA to 10 A
  • DC Voltage - 0.1 mV to 1000 V
  • Duty Cycle – 0.1 to 99.9%
  • Frequency - Electrical: 0.001 Hz to 10 MHz, Electronic: 0.01 Hz to 1 kHz
  • Resistance - 0.1 Ω to 40 MΩ
  • Temperature (Type K) Max Resolution - -45°C to 760°C (-50°F to 1400°F)
  • True RMS - Yes
  • Certifications – CE, UL
  • Dimensions – 183 mm x 83 mm x 55 mm (7.1 in x 3.2 in x 2.1 in)
  • Display – 6000-count segment LCD
  • IP Rating – IP67
  • Power – 1 x 9 V battery
  • Safety Category – CAT IV 600 V
  • Warranty – 3 years
  • Weight – 375 g (13.2 oz)