1.1
Overview
Thank you for selecting the Extech 42280A Temperature & Relative Humidity
(RH) Datalogger. The 42280A is a portable, battery operated instrument that
monitors, displays, and logs Air Temperature, Dew Point Temperature (DP),
and Relative Humidity (RH).
The 42280A can monitor environmental conditions in a variety of residential
and commercial storage and in-transit locations.
The 42280A is easy to use, offering a large display monitor, a five (5) button
keypad, two (2) LED indicators, and an alert beeper. The 42280A is supplied
with PC software that makes configuring the logger, and setting global param-
eters, very convenient.
The built-in temperature and RH sensor offers high accuracy, quick response
to changes in ambient conditions, and can be field-calibrated using optional
RH reference solutions.
1.2
Product Features
• Large monitor simultaneously displays temperature, RH, date/time, and a
variety of function icons.
• Visual and audible temperature and RH alarms with programmable high/
low limits.
• Datalogger stores up to 24,000 temperature and 24,000 RH readings.
• Plug and play USB PC connectivity, USB drivers and additional software
not required.
• Download readings to a PC and easily generate logger reports.
• Wall-mount, detachable desktop stands, and tripod mount options.
• Battery power (4 x AA batteries, supplied) or optional 9 V adapter.
1.3
Supplied Material
The equipment listed below is supplied with the 42280A.
• 42280A meter with built-in sensor.
• USB cable for PC connection.
• Printed Quick Start documentation.
• Four (4) AA batteries.
#NAS100123; r. AA/88670/88670; en-US
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Summary of Contents for 42280A
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