ONSET COMPUTER CORPORATION INTRODUCES MAC-COMPATIBLE DATA LOGGER WITH LCD
DISPLAY

New HOBO U14 data logger tracks temperature and humidity around the clock,
provides instant alarm notification of out-of-range conditions

BOURNE, MA, March 31, 2008 — Onset Computer Corporation, the “HOBO” Data
Logger Company, today introduced the HOBO U14 LCD Data Logger, a
Mac-compatible environmental monitoring system that displays and tracks
temperature and humidity levels in a broad range of indoor environments
including office buildings, museums, and storage facilities.

The HOBO U14 features an easy-to-read backlit LCD display that enables
users to make immediate visual checks of temperature and humidity
conditions, while providing long-term data logging for trend analysis. The
data logger can notify users when environmental conditions exceed set
limits on the LCD display, and via an optional audible alarm and auto phone
dialer unit.

Other features include:

* High-speed data offload — The HOBO U14 data logger provides high-speed
data offload to a PC or Mac computer via a convenient, direct-USB interface.

* Easy, intuitive software — For plotting and analyzing data, Onset offers
HOBOware software, a highly intuitive Mac-based graphing and analysis
software package for PC and Mac computers. HOBOware provides a
user-friendly interface which enables users to quickly and easily plot,
analyze and print data files, as well as export data to spreadsheet
programs.

* Large memory — The HOBO U14 LCD data logger stores 43,000 12-bit
temperature/humidity measurements with significantly-improved accuracy and
resolution over previous models.

The HOBO U14 provides high-accuracy, reliable data in a range of monitoring
applications. For example, in food storage applications, it can be used to
verify that temperature conditions in refrigeration units stay within a
certain threshold. In art galleries, it can help prevent climate-induced
deterioration to works of art by keeping continuous watch on temperature
and humidity levels. Greenhouse growers can use the HOBO U14 as part of
their overall climate control strategy to help promote favorable growing
conditions.

PRICING AND AVAILABILITY

The HOBO U14 LCD data logger will be available in April 2008. Two models
will be offered: The HOBO U14-001, which features internal temperature and
relative humidity sensors, is priced at $199. The HOBO U14-002, which can
be configured with external temperature and humidity sensors (sold
separately), is priced at $159. Software, Remote Alarm, and Auto Dialer
units for both models are sold separately. Visit (http://www.onsetcomp.com)
for more details.

ABOUT ONSET

Onset Computer Corporation has been producing small, inexpensive,
battery-powered “HOBO” data loggers since 1981, and has sold over 1,000,000
loggers that are used throughout the world by over 50,000 customers. The
company manufactures a broad range of data logger and weather station
products that are used to measure temperature, humidity, light intensity,
voltage, and a broad range of other parameters. Onset HOBO data loggers are
used in a wide range of research, commercial, industrial, and educational
applications.