Extech Instruments EX540, EX542 Catalog Page

Specifications subject to change without notice.
Copyright © 2008-09 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.

www.extech.com

10/21/10 - R1

CAT IV, Datalogging, and Wireless features

CAT IV True RMS MultiMeter datalogs up to 9,999 readings with wireless USB interface

capability to transmit readings to your PC in real time

Specifications

Functions
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)

Features:

• Real time datalogging or wireless data transmission

directly to your PC (30ft/10m)

• True RMS measurements for accurate AC Voltage and

Current measurements

• Diode open circuit voltage of 2.8V DC

• Double molded construction for waterproof (IP67) protection

• CAT IV-600V safety rating for industrial applications

• 1000V input protection on all functions

• Dual sensitivity frequency functions

• Backlit triple LCD display includes two sub-displays for

simultaneous indication of frequency with voltage and
memory data/location information

• Auto power off with disable feature

• Complete with double molded test leads, magnetic hanging strap,

Type K bead wire temperature probe, remote receiver with USB
cable, Windows

®

compatible software, 9V battery and hard

carrying case

Ordering Information

EX540 ..............MultiMeter/Datalogger with Wireless PC Interface (914MHz)

EX540-NIST ....EX540 with NIST Certificate

EX542 ..............MultiMeter/Datalogger with Wireless PC Interface (433MHz)

EX542-NIST ....EX542 with NIST Certificate

(NOTE: USA, Mexico, and Canada use 914MHz model and majority of other countries use 433MHz model)

A. Continuous wireless data transmission from meter to

your PC in real time.

B. Drop-proof to 6 feet (1.8m). Meter is built tough with

double molded housing.

C. Waterproof IP67 for the most extreme operating

conditions.

A

B

C

MultiMeter/Datalogger with Wireless PC Interface