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For Immediate Release

Packed with features, PowerSeries v4.2 features template programming and independent EOL configuration

ISC WEST -- Las Vegas, Nevada, Wednesday, April 2, 2008 – The new software release for PowerSeries control

panels – v4.2 – makes installation quick and easy. It features template programming for new users and a programming

interface that experts will be familiar with. The software also features independent End-of-Line (EOL) configuration that makes installation faster than ever before. Each zone can be independently matched to a device’s EOL configuration, reducing the time required to get a common EOL configuration across all devices.

PowerSeries 4.2 software gives the users more control, thereby enhancing the functional experience. The user can Arm Away, Arm Stay or Disarm all partitions with just one operation. And with PowerSeries 4.2 software, there is no need to worry about scalability because the new software doubles the supported wireless zones on the PC1616 – allowing up to 32 wireless zones.

DSC control panels and PowerSeries v4.2 software is a winning combination that has been designed with commercial applications in mind. PowerSeries control panels have a proven reputation for providing the value and RELIABILITY that security professionals expect. The modular design provides both VERSATILITY and FLEXIBILITY in any application. Featuring additional user codes, global arming and disarming, and scheduled auto arming and disarming, DSC control panels, enhanced with PowerSeries v4.2 software, will quickly become a preferred choice for installers.

DSC designs and manufactures exceptional products that work when it matters most.

The PowerSeries Control Panels, featuring v4.2 software, are available in most countries. For more information visit www.dsc.com, ISC West booth #23001, or online at www.dsc.com.

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Contact:

Denise Bruley, Communications & Public Relations Program Manager

DSC

(905) 760-3000, ext. 2414

Tyco Safety Products - Intrusion Security

Tyco Safety Products Intrusion Security business unit, through its leading brands DSC, Sur-Gard and Bentel, provide security professionals with products of superior quality and performance in more than 140 countries worldwide. They include alarm control panels, keypads, user interfaces, detection devices, alarm communication products, structured wiring and industry-leading alarm monitoring technology.

About Tyco International

Tyco International (NYSE: TYC) is a diversified, global company that provides vital products and services to customers in more than 60 countries. Tyco is a leading provider of security products and services, fire protection and detection products and services, valves and controls, and other industrial products. Tyco completed the spin-off of its healthcare and electronics businesses on June 29, 2007 and today has annual revenues of more than $18 billion and 110,000 employees. More information on Tyco can be found at http://www.tyco.com.