Extech Digital Multimeter, Volt-Ohm, Wireless Datalogging, EX540

In stock

Quickly and easily take voltage and current readings and wirelessly stream them in real time to your PC. Datalogs up to 9,999 readings and comes with PC compatible software.

Extech Digital Multimeter, Volt-Ohm, Wireless PC Datalogging, EX540

CAT IV True RMS Multimeter datalogs up to 9,999 readings with wireless USB interface capability to transmit real time readings to your PC


  • Real time datalogging or wireless data transmission directly to your PC within 30ft(10m)
  • Wireless receiver with USB connection and Windows compatible software
  • True RMS measurements for accurate AC voltage and current measurements
  • Diode open circuit voltage of 2.8V DC and 1000V input protection on all functions
  • Large backlit triple LCD display with 40,000 counts for clear readings
  • Dual sensitivity frequency functions
  • Double molded construction for waterproof (IP67) protection
  • Comes complete with double molded test leads, a magnetic hanging strap, a general purpose Type K bead wire temperature probe, a 9V battery and carrying case
  • Auto power off with disable feature
  • 3 year warranty

The CAT IV Multimeter is an electronic measuring instrument that combines several measurement functions in one unit. A multimeter is an indispensible tool for anybody working on electronic devices or with electricity as they include features such as the ability to measure voltage and current in both direct currents(DC) and alternating currents(AC). This durable multimeter is a great way to accurately test, transmit and store voltage and current measurements. Simply connect the remote receiver to a computer and you can stream information in real time from your meter directly and wirelessly to the computer. This allows you to monitor any fluctuations remotely from your PC and datalogs the information with the easy to use logging software. This rugged instrument is both drop-proof tested from up to 6.5ft (2m) and features a waterproof design.


  • Display Counts: 40,000 count
  • Basic Accuracy: 0.06%
  • DC/AC Voltage: 0.01mV to 1000VDC; 0.01mV to 1000VAC
  • DC/AC Current: 0.01μA to 20A
  • Resistance: 0.01Ω to 40MΩ
  • Capacitance: 0.001nF to 40mF
  • Frequency (electrical): 40Hz to 4kHz
  • Frequency (electronic): 0.001Hz to 100MHz
  • Temperature: -50 to 1382°F (-45 to 750°C)
  • Duty Cycle: 0.1 to 99.90%
  • Diode (2.8V)/Continuity: Yes
  • CE approved: Yes
  • Dimensions: 7.25x3.25x2.25"(184x83x57mm)
  • Weight: 12.3oz (349g)

Unit Ship Weight: 1.5 lbs

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