COGENT ELECTRONICS CORP., established since 1991, and  are devoted to the Microprocessor electronic technologies application in research and design. In the past 10 years, we have developed various Microprocessor controllers to provide control solutions for the Air conditioning industry. We have also invested in the Rubber industry business to manufacture Rubber Expansion Joints. 


The year 2002 is the whole new challenge for COGENT ELECTRONICS CORP., We will use the past 10 years experience to bring the world more environmentally friendly high quality products. 


Air conditioning Controllers

The miconair Series Microprocessor Air conditioning Controller products are designed and manufactured through qualified quality assurance by ISO 9002 and the reliability certification by CE approved.

We offer a range of advanced Air Conditioning Controllers with continuous R&D programs for new product development. Our international market extends to U.S.A. - EUROPE- MIDDLE EAST - ASIA - AUSTRALIA and The Pacific Rim, Miconair products have an established reputation for excellence.

Our Air conditioning controllers provide you with a total solution for your Air conditioning system requirements our controls provide the complete control functions whatever the system is: Direct Expansion Cooling, Cool/Heat-pump, or  Chilled/Hot water for Cool/Heat, and also Electric Heater. They are available to suit any Air conditioner type, Eg. Window, Wall-mount, Free-stand and Ceiling-exposed, cassette, concealed etc.


Topflex Series....
Rubber Expansion Joint

In 1999, COGENT invested a related company TOPFLEX RUBBER INDUSTRY CO., LTD in Thailand, which in co-operation with Australia adopted the latest technology to manufacture the Rubber Expansion Joint. All of our products are superior to traditional products, characterized by quality & durability, they are for use in Chemical Process Industry, HVAC, Marine, Pollution Abatement, etc.

There are 3 Series in our products lines, which are Single Sphere with flange (Series TS, size is from 1 to 24 inch), Twin Sphere with flange (Series TT, size is from 1 to 20 inch) and, Twin Sphere with Union threads (Series TU, size is from 1/2 to 3 inch.). The optional parts: such as Control Rods, Rein Forcing Rings, Control Unit Cable as required. (For more information please check the individual link in our web site.) We are confident our Rubber Expansion Joint products will satisfy you with their competitive price, high quality, prompt delivery and good service.

Head office in Taiwan:

Cogent Electronics Corp. 

5th Floor-9, No. 4, Lane 609, Sec. 5, Chung-Shin Rd.,
San Chung City, Taipei, Taiwan, R.O.C.
Tel:  886-2-29992418
Fax: 886-2-22781727

Attn. John Chen/ G.M.


Office in U.S.A.:


982 Yorktown Dr, Sunnyvale CA94087, U.S.A.
Tel: 1-408-2455708

Fax: 1-408-2455105 

Attn. Mr. Spencer, S.P. Tsai / V.P.


Factory in Thailand:


25/2 Moo 1 Tambol Nongsamsak Amphur Banbueng,
Chonburi, 20170 Thailand

Branch in Australia:

TOPFLEX Rubber Industry co (AUST) Pty Ltd.

94-98 Jardine Street (P.O.Box 83), Fairy Meadow NSW 2519,

Tel: 61-2-42835377
Fax: 61-2-42835467

Attn. Mr. Edward T. Jacob / Managing Director