ONSET COMPUTER CORPORATION LAUNCHES K-12 ENERGY CONTEST

New HOBO Energy Challenge promotes hands-on science learning and energy awareness with free equipment loans to teachers and students

BOURNE, MA, September 22, 2004 - Onset Computer Corporation, the leader in reliable, battery-powered data loggers, today announced a new K - 12 energy contest for teachers and students through its iScienceProject program. Aimed at putting professional energy monitoring equipment in the hands of teachers and students for free, the HOBO® Energy Challenge contest will promote energy awareness within schools while offering students of all ages a fun, hands-on science learning experience with HOBO data loggers.


The mission of the Energy Challenge is simple: use data loggers to document energy usage schools. Participating classrooms will receive a free HOBO Loaner Package that includes everything needed to start investigating energy usage: a HOBO data logger, software, and energy-saving contest activities. Classrooms that investigate and document energy usage in at least one area of their school win a complete HOBO data logger system ($200 value). An entire classroom set of HOBO data loggers ($1000 value) will be awarded to elementary, middle- and high-school classrooms that make the greatest effort to investigate energy usage.

"Since we began our K-12 initiative two years ago, Onset has loaned more than half a million dollars worth of data loggers to schools in the United States," says Mark McSherry, president of Onset. "The inspiration for the HOBO Energy

ONSET LAUNCHES K-12 ENERGY CONTEST/page 2

Challenge came from a classroom at the Burrel Union Elementary School in
California. Students there used HOBOs to investigate school energy usage and ultimately helped the school reduce its electric bill by roughly 20%. In addition to promoting energy conservation, the Energy Challenge is a great way for kids to get excited about science while preparing them for some of the technology tools they may use in the future."

For more information on the HOBO Energy Challenge, please visit www.iscienceproject.com.

About Onset Computer Corporation
Onset Computer Corporation has been producing small, inexpensive, battery-powered data loggers since 1981, and has sold over 600,000 units used throughout the world by more than 26,000 customers. Onset offers more than 60 models of data loggers to measure temperature, humidity, light, AC current, carbon dioxide, carbon monoxide, 4-20 mA, voltage, on/off, open/closed, and events. Onset data loggers are used in a wide range of energy, facilities management, HVAC, transportation, and industrial applications.

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