EX542 Multimeter

Extech - EX542

The EX542 offers wireless connectivity to your laptop or PC using a USB receiver with a range comparable to Bluetooth (10m/33 ft.). The EX542 transmits real-time data for monitoring, trending and analysis (using the included software) on one of two available frequencies (433MHz). Now, electrical professionals can monitor and data log readings at a safe distance from hazardous locations. Additionally, it is easier to perform remote tasks such as powering up a device from a control panel that is not nearby. From a time-saving perspective for laptop users, the EX542 permits a user to set up his or her laptop at a centralized location and then sequentially data log readings throughout a site without relocating the laptop. In addition to wireless data logging, the EX542 can log up to 9,999 readings internally and also read voltage, current, resistance, capacitance, frequency (with dual-range sensitivity for electrical and electronic work), duty cycle (dwell), continuity, diode testing (2.8 Volt), and even temperature (using its Type K thermistor bead probe). Complete with double-molded test leads, USB wireless receiver, temperature probe, magnetic hanging strap, 9V battery and carrying case.

  • Max Current (A): 20 (AC), 20 (DC)
  • Max Voltage (V): 1000 (AC), 0.001 (DC)
  • Max Resistance (Ω): 40 (AC)
  • Capacitance Measurement: Yes
  • Temperature Measurement: Yes
  • Frequency Measurement: Yes
  • Transistor Test: None
  • Continuity: Yes
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Extech EX320

Max Current (A): 10 (AC), 10 (DC)

Max Voltage (V): 600 (AC), 0.0006 (DC)

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Extech MN10

Max Current (A): 0 (AC), 0 (DC)

Max Voltage (V): 500 (AC), 0.0005 (DC)

Max Resistance (Ω): 2 (AC)

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Frequency Measurement: None

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