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Technology Partners

Harmony Alliance (TDSi - Texecom - Elmdene - GJD - Advanced LED Technology)

Who we are

Harmony LogoA group of five UK-based, world-class electronic security manufacturers have united to create something never seen before - an alliance that brings together best-in-breed specialists collaborating to offer customers innovative security solutions and integration technology without sacrificing freedom of choice and forcing compromise. Through cooperative product developments, support and distribution partnerships and an open-arms approach to support, they are working to improve the customer experience for installers and end users around the world.

Collaborate ­- Innovate ­- Protect

Harmony alliance members are experts in their specialty. The alliance brings them together to develop unique solutions for customers, making each individual part of the security system work more effectively with each other part. They work with integrators to help customers solve problems, and ultimately, protect the lives, livelihoods and properties of our end-users.


Texecom Logo

Texecom is Europe’s largest independent security alarm specialist providing bespoke design solutions that protect people and property throughout the world. Established 25 years ago, Texecom’s award-winning products cover every aspect of external and internal security requirements.

Including a full range of motion detectors, control panels, perimeter protection devices, fire detectors and external sounders. Texecom has recently launched a new ground breaking wireless technology, Ricochet mesh networking, to universal acclaim.


GJD LogoGJD Manufacturing Limited is an industry leader in the design, manufacture and supply of professional external detector equipment, as well as CCTV and security lighting controllers utilised in the intruder surveillance sector.

Based in Heywood, Manchester, GJD's team has extensive knowledge and expertise, with over 30 years of experience in the security lighting industry.


Elmdene LogoElmdene International Limited is a manufacturer of Electronic Products for the Security, Access Control, CCTV and Fire Industries around the world, including Power Supplies, External/Internal Sounders, and Magnetic Contacts in addition to a range of Ancillary products.

Established over forty years ago Elmdene International Limited has enjoyed steadfast growth based on the design and production of reliable products for those specific markets.


Because everyone deserves peace of mind. Accreditations

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