Colorful Holder Rewritable Magnetic TM iButton Card DS1990A-F5 iButton Key

Product Parameter

TM card is similar to a button battery in shape and can be inlaid into a card, key button and other objects.

You can replace the data line, address line, control line and power line with a single line so that TM card achieves single line communication through a multi-function device. When the host is powered, TM card gives the response to the host through switching the impedances between 50Ω and 500,000Ω. The lengths of time the signal is pulled down(long or short) show the digital logics(long=1, short=0). Due to the range of witching impedances is 1-10,000, the resistances of the contact points will not affect the identification of the digital signals.

According to whether the Memory in TM card is encrypted or not, TM card can be divided into encrypted TM card and non-encrypted TM card.

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  Zhongshan Jiean Electronic Technology Co., Ltd. was founded in 2000, the company is located in Xiaolan Town, Zhongshan City, Guangdong Province, is a professional commitment to intelligent lock research and development, production, sales, service in one of the high-tech enterprises.

  The company's main products: smart door lock, electronic lock, hotel lock, apartment lock, cabinet lock, smart card, lock cylinder, lock body and other products. It owns more than 50 patents on the core technologies such as product appearance structure and electronic circuit module. Superior geographical environment and rich industrial chain promote the rapid and steady development of SELockey. Its products are sold well at home and abroad, and are well recognized and praised by peers and customers.

     Company strength

• National high and new technology enterprise
• The world has 284 million consumers are using SELOCKEY
• 4062 global distribution agent, including a total of 594 overseas
• Electronic, circuit, module and other more than 50 core technology patents
• Close cooperation between multiple factories
• Our products are exported to more than 20 countries, such as USA, UK, Germany, Spain, Russia, Turkey, Brazil, India, Vietnam, Philippines, Portugal, Thailand, Malaysia, Singapore, etc
• It takes 45 working days for the lock god to produce each lock. The lock is made in strict accordance with the international lock making process of MIN. We dare not cut corners or reduce procedures. A good lock, from the material preparation to the warehouse, the production time is 2 times of the ordinary intelligent lock.