Starting at
$299.99

Availability

Select options to see availability

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Features

  • Manufactured by Extech
  • AC/DC voltage range: 0.01mV to 1000V
  • AC/DC current range: 0.01µA to 20A
  • Resistance range: 0.01Ω to 40MΩ
  • Capacitance range: 0.001nF to 40mF
  • Frequency (electrical) range: 40Hz to 400Hz
  • Frequency (electronic) range: 0.001Hz to 100MHz
  • Temperature range: -50 to 1382°F
  • Basic accuracy: ±0.06%
  • Diode open circuit voltage of 2.8V DC
  • MIN/MAX/Relative/Data Hold
  • Double molded for waterproof protection (IP67)
  • CAT IV-600V safety rating for industrial applications
  • Case and basic accessories included

The Extech EX540/EX542 is an industrial quality True RMS multimeter featuring 1000V input protection over all ranges. The EX540/EX542 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 EX540/EX542 also includes a CAT-IV-600V safety rating for industrial applications and a 9,999 reading datalogger that allows users to store data for later retrieval.

The Extech EX540/EX542 is a versatile instrument capable of accurately measuring AC/DC voltage, AC/DC current, resistance, frequency, capacitance, and temperature. The basic accuracy of the meter is ±0.06%. Results are displayed on a large, 40,000-count LCD for the highest resolution. The EX540/EX542 has a data acquisition mode for real-time transmission to your PC via a wireless USB interface. The EX540 transmits at 915MHz and the EX542 transmits at 433MHz.

Additional features of the Extech EX540/EX542 include: diode and continuity tests, MIN/MAX, Data Hold and Relative, an auto power off with disable feature, and dual sensitivity frequency functions (electrical/electronic).

The Extech EX540/EX542 industrial multimeter ships complete with:

  • Double molded test leads
  • Remote receiver with USB cable
  • Software
  • Magnetic hanging strap
  • Carrying case
  • 9V battery
  • Type K bead wire
  • temperature probe
Test Leads
Extech TL803 Standard Test Leads
Standard replacement test leads, compatible with most multimeters
$8.99
Extech TL805 Double Injected Test Leads
Professional grade, double coated PVC lead wires
$13.99
Extech TL807 Alligator Clips
CAT III-1000V rated alligator clips
Starting at
$5.99
Extech TL808 Professional Test Lead Kit
8-piece professional test lead kit with CATIII-1000V safety rating
$29.99
Extech TL809 Electronic Test Lead Kit
Ideally suited for testing digital circuitry
$16.99
Extech TL810 Electrical Test Lead Kit
8-piece, versatile, CAT III-1000V rated testing kit
$45.99
Extech TL708 Alligator Clips
Heavy duty, large alligator clips with toothed jaws
$15.99
Extech TL726 Test Lead Set
Right angle and straight end flexible leads with shrouded banana plugs
$13.99
Extech TL740 Test Clip Set
Industrial plunger style - spring loaded clip with steel jaws
$20.99
Extech TL741 Hook Clips
Heavy duty plunger style hook clips
$20.99
Extech TL742 Pincer Grip Set
Heavy duty plunger style pincer grip set
$20.99
Extech TL743 Test Probe Set
Probes feature sharp points for piercing insulation
$12.99
Extech TL744 Test Probe Set
Flat blade test probes designed to fit outlet receptacles
$11.99
Extech TL747 Test Probe Set
Sharp probes for use on high density components and boards and for piercing insulation
$17.99
Extech TL748 Hook Tip Probes
Ideal for gripping a component lead or fine wire
$20.99
Extech TL831 Test Lead Set
12 piece industrial grade test lead kit
$99.99
Extech TL833 Test Lead Set
Industrial test lead set with CAT III - 1000V rating
$99.99
Extech TL841 Test Lead Kit
16-piece kit with multiple test lead tip configuration
$99.99
Probes
Extech TP200 Type K Pipe Clamp Temperature Probe
Hands-free temperature measurement from -4 to 200°F
$40.99
Extech TP400 Type K Pipe Clamp Temperature Probe
Hands-free temperature measurement from -4 to 450°F
$82.99
Accessories
Please consider these optional accessories.
Extech 401021 Foot Candle Light Adaptor
Measures Foot Candle on your multimeter
$69.99
Extech CA200 Series AC Clamp-on Adaptors
Converts your Multimeter into a 200A or 400A AC clamp meter
Starting at
$54.99
Extech Soft Vinyl Carrying Cases
Protect and store your multimeters and accessories in a soft vinyl carrying case
Starting at
$15.99
Extech HG500 Magnetic Hanging Strap
Magnetic hanging strap for the Extech EX500 Industrial Multimeters
$9.99