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Leeds Leads(HKTDC Electronics, Vol 02,2006)

Leeds Electronic Engineering Ltd


The revolutionary two-wire security system developed by Leeds Electronic Engineering Ltd makes DIY installation a breeze
KISS - or Keep It Simple Stupid - is an oft-quoted motto that has really been taken to heart by the R&D team at Leeds Electronic Engineering Ltd.

The 33-year-old company has built a name for itself as a reliable manufacturer of high-quality alarm systems and security products, and has now made a technological breakthrough based on a simple but sound idea.

"We have developed what we call two-wire technology," explains general manager Michael Lui. "Conventional alarm systems use six wires to connect sensors to the control panel, but because we also have experience in installation we understand how difficult and frustrating installing these systems can be."

He admits the idea of reducing the number of connecting wires in a security system to a pair is not new, but notes previous systems were subject to interference and required extra components that drove up the cost.

"We have developed a signal processor and a signal mixer which jointly render many six-wire systems components such as terminal blocks and relays unnecessary," Lui claims. "As a result, the cost is not much more than that of a conventional six-wire system, so our pricing is competitive."

He adds that the simplified wiring arrangements will make DIY installations of security systems far easier, in many cases eliminating the need for professional assistance altogether.

"This revolutionary two-wire technology has now been patented by Leeds in Europe and the US, with patents in other areas in progress," Lui notes.

Lui says that the company expects to build market share for two-wire systems substantially through OEM/ODM business, although it has its own Leeds brand.

"We started off making systems for other people and then started making systems under our own name, but our strengths so far have been in R&D rather than marketing and brand-building," Lui admits. "Our multinational R&D team includes engineers from the Chinese mainland, the UK, Australia and the US."

Lui is convinced that the two-wire technology opens exciting opportunities, and points out that the reduced number of wires and components has a number of advantages over and above ease of installation.

These include enhanced protection of the control panel and the integrity of the system, full line protection and automatic identification of any disabled zone.

Leeds products using the new technology include the LS400 four zone two-wire alarm system and the LS800S eight zone two-wire alarm system; although the company also manufactures wireless systems and conventional six-wire systems.

Other innovative Leeds products include a wireless external siren and strobe unit or "bell box" called the Solar Bell. "A bell box is basically a sounder with a strobe that sets off a flashing light and sounds if someone breaks into a property," Lui explains. "Usually this is a wired device because it uses a lot of power, but now we are using solar energy so it's a truly wireless bell box."

Another advanced unit with which the company has enjoyed some sales success is the AD2510 security monitoring and reporting centre, which is an auto voice dialer.

"It can be connected to the two-wire system or a wireless system and will send a prerecorded voice message to a security centre if someone tries to break in," Lui explains.

Production is handled at Leeds' ISO 9001-certified, 6,000-square-metre factory in Dongguan on the mainland, which employs some 350 workers.

Current product lines include wired and wireless RF electronic alarm systems and accessories, electronic buzzers, sirens, integrated sounder/strobe unit motion detectors, and magnetic contacts. "Many of our products are certified to meet international approval standards, including CE, UL, FCC, ICAN and IMQ," Lui adds.

Leeds also makes other electronic products and PCB assemblies to customer designs. "We sell to distributors, and at the moment we're selling more to shops than to professional installers," Lui notes. "We sell mostly to Europe, though our products also sell in Australia, Russia, Romania and Japan and we do some business in the US."


Leeds Electronic Engineering Ltd

Flat B, 21/F, Yally Ind Bldg,
6 Yip Fat St, Wong Chuk Hang,
Hong Kong
Tel: 852-2554-1261
Fax: 852-2873-1255
Web: www.leeds.com.hk