Melanie Stone

Director, Marketing Communications Aeris.net

+1 (650) 248-4475

Melanie.Stone@aeris.net

Charles Christie

VP Marketing and Business Development Critical Wireless

(512) 327-9510

(Austin, Texas) October 25, 2004   - CriticalWireless Corporation announced today that its new CWSentry wireless machine-to-machine (M2M) module has been qualified for commercial deployment on the Aeris.net MicroBurst® network throughout North America. CriticalWireless has been an Aeris.net authorized solution provider for over four years.

The patent-pending CWSentry module is compact and self-contained with onboard I/O terminals, advanced microprocessor control and internal battery backup, and was designed to allow rapid solution development for virtually any wireless remote monitoring and control application. CWSentry is a key a component of CriticalWireless' M2M Services Suite that includes monitoring, alarming, and control of remote equipment from mobile devices (M2WAP™ Portal), the web (M2Web™ Portal), or any telephone (M2Voice™ Portal).

"The CWSentry module is an extremely flexible platform that allows equipment manufacturers and owners to quickly and inexpensively incorporate web-based wireless remote monitoring and control functionality into their machines," says Charles Christie, VP Marketing and Business Development. "And thanks to the huge footprint of the MicroBurst network, CWSentry-based solutions can be deployed almost anywhere in North America. This is an exciting new chapter in our long-standing relationship with the Aeris.net team."

The small form-factor of the CWSentry module can be incorporated into most existing control panels and cabinets. Flexible analog, digital, and serial I/O capabilities (both onboard and via expansion modules) ensure compatibility with virtually any signal interface or protocol.

As part of an exclusive licensing agreement with CriticalWireless, Lindsay Manufacturing Corporation (NYSE: LNN) recently released the FieldSENTRY™ system based on the CWSentry platform. FieldSENTRY is a web-based agricultural irrigation remote monitoring and control solution that helps growers maximize scarce and expensive resources such as water, energy, and manpower ( http://www.fieldsentry.com ). Other OEM licensing agreements are pending.

About CriticalWireless Corporation:

Headquartered in Austin, Texas, CriticalWireless ( http://www.criticalwireless.com ) has been developing web-enabled, wireless machine-to-machine (M2M) communications solutions for over four years. The company designs turnkey wireless remote monitoring and control systems based on its modular M2M Services Suite for emergency standby power systems, municipal water/wastewater facilities, critical data centers, agricultural equipment, public safety installations, and many other applications. Numerous Fortune 500 companies and government agencies rely on CriticalWireless M2M technology each day. For more information on CriticalWireless, contact Charles Christie, VP Marketing and Business Development, (512) 327-9510 or cachristie@criticalwireless.com.

About Aeris.net

Aeris.net is the leading provider of machine-to-machine wireless network services. Aeris.net has integrated all of the critical elements necessary - carriers, existing wireless and wireline infrastructures, applications, and proprietary two-way technologies - to create the MicroBurst network: the largest M2M wireless network in the western hemisphere. The MicroBurst network is deployed over the aggregated infrastructure of 30 North American wireless carriers, covers over 350 million people, and seamlessly operates anywhere there is cellular coverage within the United States, Canada, and Mexico. Today, Aeris.net provides service to over half a million devices ranging from security and alarm panels to trailer tracking products. For more information, please visit the company's web site at http:// www.aeris.net or call 888-Go-Aeris.

CriticalWireless and CWSentry are trademarks of CriticalWireless Corporation. MicroBurst® and Aeris are trademarks of Aeris Communications. FieldSentry is a trademark of Lindsay Manufacturing Corporation. All other company or product names are trademarks of their respective holders.