SO. ST. PAUL, MN (April 25, 2005) ... Digital Angel Corporation (Amex:DOC), an advanced technology company in the field of rapid and accurate identification, location tracking, and condition monitoring of high-value assets, announced today that North Memorial Air Care will equip its fleet of six air-medical aircraft with a unique Flight Tracking and Messaging System developed and manufactured by Digital Angel's subsidiary OuterLink. The OuterLink system's unique ability to provide 30-second position reporting, three-second Mayday alerts, and exact trip mileage reports were key factors that led North Air Care to select the OuterLink System.

The OuterLink system will enable Brooklyn Center, MN-based North Memorial Air Care to manage the deployment of all aircraft equipped with OuterLink satcom data terminals from their Communication Center in Brooklyn Center. In addition to providing dispatchers with real-time flight tracking data, the satcom terminal also supports two-way digital messaging with pilots and provides flight nurses and paramedics with a communications interface for equipment such as laptop computers and patient monitoring devices. While the entire fleet is monitored from a central location, individual satellite bases can also monitor the location of their particular aircraft.

"Our decision was based on several factors but paramount was the ability of the system to interface with our existing CAD system," said Joe Glaccum of North Memorial Ambulance Service. "OuterLink was more than willing to work with our software vendor to get this accomplished. The ability to provide an exact trip mileage report was also a key component in the decision as well as the reliability of the position reporting. I have high expectations for the system and so far it appears to be quite stable."

The OuterLink system includes the satcom data terminal and low-profile antennas installed on each aircraft together with the CommTrack suite of PC software tools that enables flight management personnel to visually track and display real-time and historical information about all aircraft under their control. The software incorporates a comprehensive map database that allows dispatchers to pan and zoom into whatever level of topographic detail is relevant to their tracking needs. It also provides the capability to display weather information on these maps to provide up-to-the-minute advisories to flight-following dispatchers.

Glaccum added that "For us, a key component of CommTrack is the CommFigure Trip Reporting software. By tracking and computing actual loaded miles flown from any time period, it will enable us to provide more accurate bills to our customers and at the same time maximize our revenues."

Kevin O'Brien, OuterLink's VP of Operations said, "This program is currently being used by several hospitals and they all report that the increased revenue it provides will enable them to recover their initial investment in their OuterLink system in less than one year."

About OuterLink
Based in Lowell, MA, OuterLink, a Digital Angel subsidiary, provides satellite-based mobile asset tracking and data messaging systems. Used to manage the deployment of aircraft and land vehicles, these systems provide real-time location reporting, secure bi-directional data communication and comprehensive asset management software. They enable ground personnel to track the minute-by-minute movement of mobile assets, monitor on-board sensors and conduct bi-directional messaging with aircraft pilots and ground vehicle operators. For more information, visit http://www.outerlink.com.

About Digital Angel Corporation
Digital Angel Corporation develops and deploys sensor and communications technologies that enable rapid and accurate identification, location tracking, and condition monitoring of high-value assets. Applications for the Company's products include identification and monitoring of pets, fish and livestock through its patented implantable microchips; location tracking and message monitoring of vehicles and aircraft in remote locations through systems that integrate GPS and geosynchronous satellite communications; and monitoring of asset conditions such as temperature and movement, through advanced miniature sensors.

Digital Angel Corporation is majority-owned by Applied Digital, Inc. (Nasdaq:ADSX). For more information about Digital Angel, please visit www.DigitalAngelCorp.com.

The statements in this press release that are not strictly historical, are "forward-looking" statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 and are intended to be covered by the safe harbors created by these sections. The forward-looking statements are subject to risks and uncertainties and the actual results that the Company achieves may differ materially from these forward-looking statements due to such risks and uncertainties, including, but not limited to, that the Company's majority stockholder, Applied Digital Inc. owns 55.2% of the Company's common stock; that new accounting pronouncements may impact the Company's future results of operation; that the Company may continue to incur losses, that infringements by third parties on the Company's intellectual property or development of substantially equivalent proprietary technology by the Company's competitors could negatively affect the Company's business; that domestic and foreign government regulation and other factors could impair the Company's ability to develop and sell the Company's products in certain markets; that the Company relies on sales to government contractors of its animal identification products, and any decline in the demand by these customers for the Company's products could negatively affect the Company's business; that the Company depends on a single production arrangement for its patented syringe-injectable microchips; that the Company depends on principal customers; that the Company competes with other companies and the products sold by the Company's competitors could become more popular than the Company's products or render the Company's products as obsolete; that the Company's earnings will decline if the Company must write-off goodwill and other intangible assets; that the exercise of options and warrants outstanding and available for issuance may adversely affect the market price of the Company's common stock ;that currency exchange rate fluctuations could have an adverse effect on the Company's sales and financial results; and that the Company depends on a small team of senior management and the Company may have difficulty attracting and retaining additional personnel. A detailed statement of risks and uncertainties is contained in the Company's reports to the Securities and Exchange Commission, including in particular the Company's Form 10-K for the fiscal year ended December 31, 2004. Investors and stockholders are urged to read this document carefully. The Company can offer no assurances that any projections, assumptions or forecasts made or discussed in this release will be met, and investors should understand the risks of investing solely due to such projections. The Company undertakes no obligation to revise any forward-looking statements in order to reflect events or circumstances that may arise after the date of this press release.