Digi Announces ZigBee Smart Energy Certified ESP Gateway Built upon Industry`s First ZigBee Smart Energy-Ready Module

- New comprehensive Smart Energy product family expands iDigi Energy offering -
MINNETONKA, Minn.--(Business Wire)--
Digi International (NASDAQ: DGII) today introduced a comprehensive Smart Energy
product family, including the industry`s first ZigBee Smart Energy ready modules
and certified Energy Service Portal (ESP) gateways built on these modules. The
ZigBee Smart Energy public profile defines how a collection of devices works
cooperatively within a network, enabling utilities to intelligently manage
energy loads, monitor energy use and optimize consumption. As a device
communication standard for home area networks (HANs) selected by the U.S.
Department of Energy in their initial standards framework for Smart Grid
development, ZigBee Smart Energy is a key technology for addressing America`s
energy management needs in the future. With the release of ZigBee Smart Energy
ready modules and gateways, Digi is making this technology more accessible than
ever before.

Digi`s new ZigBee Smart Energy product family includes the XBee and XBee-PRO SE
ZigBee modules and ConnectPort X2 ESP certified gateway. Built upon the existing
XBee and XBee-PRO ZB, the new XBee and XBee-PRO SE modules feature firmware that
simplifies the development work required to develop and certify a ZigBee Smart
Energy device. The ConnectPort X2 ESP gateway provides the connection between a
consumer`s HAN and an energy service provider over a broadband or cellular
connection.

"We developed a new programmable and controllable thermostat using the XBee SE
module," said Michael Kuhlmann, president, Residential Control Systems. "The
XBee SE module made the development process easy and reduced development time of
our industry-leading product by almost half."

"Digi is taking a leadership role in creating the Smart Grid," said Joe
Dunsmore, CEO, Digi International. "Our March launch of iDigi Energy makes
creating wireless energy management applications incredibly easy. And now with
this Smart Energy launch, our OEM customers can quickly create the interoperable
thermostats, in-home energy displays, metering devices and load controllers
needed to make the Smart Grid a reality."

Digi ZigBee Smart Energy products also expand the recently launched iDigi Energy
wireless M2M solutions bundle, which features the hardware, hosted software and
services necessary to quickly and easily integrate Smart Grid devices. iDigi now
includes Smart Energy ready hardware as well as Smart Energy software support
through the iDigi platform, a Platform as a Service (PaaS) that connects remote
assets to a customer`s applications.

"The ZigBee Smart Energy profile is the standard for Smart Grid applications,"
said Benno Ritter, vice president of marketing at the ZigBee Alliance. "With the
release of Digi`s new product family, the company is driving the energy industry
forward by making it easier for OEMs to develop ZigBee Smart Energy devices."

XBee and XBee-PRO ZB ZigBee modules feature ZigBee Smart Energy-ready firmware
for supporting the implementation of each of the eight devices defined in the
ZigBee Smart Energy public application profile. These include ESPs, metering
devices, in-premise display devices, programmable communicating thermostats
(PCTs), load controllers, range extenders, smart appliances and prepayment
terminals. Developers making these devices can now use Digi`s Smart Energy
products and iDigi Energy bundle to dramatically reduce the development and
certification time, and overall expertise required, to produce a ZigBee Smart
Energy product.

Additionally, XBee and XBee-PRO ZB ZigBee modules handle networking, joining,
authentication and key establishment functions, and provide simple network and
module configuration via the XBee Application Programming Interface (API).
Customers can also upgrade their existing XBee and XBee-PRO ZB modules with
Smart Energy firmware free of charge.

The ConnectPort X2 ESP enables energy service providers to deploy HAN devices
that are completely managed by the Digi gateway over a broadband or cellular
connection, allowing Smart Grid services to be deployed in areas not covered by
Smart Metering networks.Once a Smart Meter is installed, the gateway can join
that network providing programmable energy services in the home and secondary
communication paths over public networks for enhanced energy service offerings.
The ConnectPort X2 ESP was tested and certified using National Technical
Systems' (NTS) ZigBee Smart Energy (SE) Test Harness.

Digi has launched a development program for those interested in leveraging these
products immediately. For more information on this program, and to get started
developing around Smart Energy today, visit http://www.digi.com/smart-energy.
For more information about iDigi Energy, visit www.idigi.com.

About Digi International

Digi International is making wireless M2M easy by developing reliable products
and solutions to connect and securely manage local or remote electronic devices
over the network or via the Web. Digi offers the highest levels of performance,
flexibility and quality, and markets its products through a global network of
distributors and resellers, systems integrators and original equipment
manufacturers (OEMs). For more information, visit Digi's Web site at
www.digi.com, or call 877-912-3444.

About RCS

RCS creates innovative products for the energy management and controls market.
For 20 years, it has been a leader in providing this market with a wide range of
communicating thermostats and HVAC control products, including zone controls and
dampers. RCS has developed advanced, next generation thermostat products that
communicate with Utility Meters and support Demand Side Management (DSM)
programs providing energy savings to the end users and grid reliability to the
Utilities. RCS also provides system level solutions for monitoring and actively
controlling energy consumption. These products include energy manager
controllers and monitoring devices like communicating electric and water meters.
For more information about RCS, visit www.resconsys.com.

ZigBee: Control your world

ZigBee is the global wireless language connecting dramatically different devices
to work together and enhance everyday life. The ZigBee Alliance is a non-profit
association of more than 300 member companies driving development of ZigBee
wireless technology. The Alliance promotes world-wide adoption of ZigBee as the
leading wirelessly networked, sensing and control standard for use in consumer
electronics, energy, health care, home, commercial and industrial areas. For
more information, visit: www.zigbee.org.

About NTS

National Technical Systems, Inc. is a leading provider of engineering services
to the defense, aerospace, telecommunications, automotive and high technology
markets. Through a world-wide network of resources, NTS provides full product
life-cycle support, offering world class design engineering, compliance,
testing, certification, quality registration and program management. For
additional information about NTS, visit our website at www.ntscorp.com or call
800-270-2516.

All brand names and product names are trademarks or registered trademarks of
their respective companies.

Digi International
Jan McBride
(952) 912-3473
jan_mcbride@digi.com
or
Mulberry Marketing Communications
Matt Serra
(312) 664-1532
mserra@mulberrymc.com

Copyright Business Wire 2009