INTEGRATED SECURITY SYSTEMS, INC. ANNOUNCES MARKETING AND DISTRIBUTION AGREEMENT WITH GPS STANDARD

Irving, Texas – September 27, 2005 – Integrated Security Systems, Inc. (ISSI), (OTCBB Symbol: IZZI), a leading manufacturer and provider of homeland security related products, including anti-terrorist barriers and perimeter security technology, today announced that it’s wholly owned subsidiary, B&B ARMR Corporation has reached an agreement with GPS, an Ivrea, Italy based security firm, to market and exclusively distribute the complete range of GPS invisible perimeter security technology to the North American market.  B&B ARMR will sell the GPS buried detection system as part of a total perimeter security solution to complement its industry leading line of anti-terrorist gates and barriers.

The GPS system is an intelligent and unobtrusive solution that can be used in a wide variety of threat vulnerable projects, from nuclear power stations, airports, petro-chemical and government complexes and banks to museums and other facilities that have the need for invisible perimeter detection.  GPS Perimeter Systems has been selling the invisible GPS systems for over 25 years in Europe to highly prestigious and sensitive security installations.

“We see the need for inconspicuous high security technology as important as the integrity of the solution itself,” stated Peter Beare, Chief Executive Officer of B&B ARMR.  “With the sophistication quotient of terrorists increasing, the ability to provide effective and undetectable perimeter protection is essential.  The GPS technology represents a major step forward in this strategy.”

The companies plan to offer the GPS buried detection system in combination with fixed and portable anti-terrorist barriers by B&B ARMR, in conjunction with monitoring consoles and access control technology by the Intelli-Site and DoorTek divisions of ISSI in integral project specific packages.  The GPS system provides positive and virtual error free detection of intruders that will then provide network signals to initiate positive protection, such as deployment of barriers and initiation of CCTV recording to the points on incidence.

“The well established system integration channels of B&B ARMR will serve as a ready outlet for our security portals,” stated Tommie Tommaselli, Vice President of Sales and Marketing for GPS.  “We look forward to working with a company that is already a recognized leader in the homeland security and anti-terrorist efforts is an important step in bringing our technology to the North American market.”

The agreement is focused on the North American market, but the parties have also agreed to a unique relationship in the Middle East, borrowing on the B&B ARMR partnerships already established there.

About ISSI

Headquartered in Irving, Texas, ISSI is a technology company that provides products and services for homeland security needs.  ISSI also designs, develops and markets safety equipment and security software to the commercial, industrial and governmental marketplaces.  ISSI’s Intelli-Site® provides users with a software solution that integrates existing subsystems from multiple vendors without incurring the additional costs associated with upgrades or replacement.  Intelli-Site® features a user-defined graphics interface that controls various security devices within one or multiple facilities.  ISSI is a leading provider of anti-terrorist barriers, traffic control and safety systems within the road and bridge and perimeter security gate industries.  ISSI designs, manufactures and distributes warning gates, lane changers, airport and navigational lighting and perimeter security gates and operators.  ISSI conducts its design, development, manufacturing and distribution activities through three wholly owned subsidiaries:  B&B ARMR, Intelli-Site, Inc. and DoorTek Corporation.  For more information, please visit www.integratedsecurity.com, www.bb-armr.com www.intelli-site.com, or www.doortek.com.

About B&B ARMR

B&B ARMR Corporation engineers and manufactures high security crash rated barriers and parking control equipment for commercial and institutional use throughout the world. B&B ARMR offers turnkey installation services for its security and control products and supplies parts and services for vehicle barriers manufactured by other companies. The company’s roots can be traced to 1925, and they assert a high profile customer list that includes the Pentagon, San Diego Naval Station, G.E. Headquarters, Hertz, FDA, FAA Headquarters, Department of State and several foreign embassies. For additional information, please visit www.bb-armr.com.

About GPS Standard

GPS Standard is a leading Company in the security sector and in particular in the development of the perimeter protection systems integrated with advanced remote surveillance applications.  For 30 years it has established its leading position thanks to constant investment in the development and application of the most sophisticated digital and information technology products.

This information contains certain forward-looking statements. It is important to note that ISSI's actual results could differ materially from those projected by such forward-looking statements. Important factors that could cause actual results to differ materially from those projected in the forward-looking statements include, but are not limited to, the following: operations may not improve as projected, new products may not be accepted by the marketplace as anticipated, or new products may take longer to develop than anticipated.