Disadvantages of the first generation driving unit: the motor in the lock core was apt to get down when abraded and compressed by the mechanical components. as a result, the door could not be either locked or unlocked. it was really hard to control the door locks! what's worse, the dealers who were repeatedly trained still could not get hold of the technology for repairing the lock cores, and the users had to wait for the manufacturer to change the products they have bought. they omplained about this and felt extremely

Digi enterprise attached great importance to this problem hindering development of the industry, and invested a great deal to establish a technical improvement team omposed of electromechanical experts. they worked for three years and finally figured out a perfect solution in 2001. over five years of trial applications, the door locks adopting the solution are proved to maintain outstanding performance. now in 2007, digi enterprise officially announces the successful development of the second generation driving unit, which is the simplest and the most reliable in today's electronic door lock industry.

The advanced mechanical structure not only avoids magnetic interference, but also considerably reduces mechanical abrasion, particularly, abrasion of the lock core, the heart of electronic door locks, thus fulfilling the basic requirements for implicity and stability of electronic door locks. at present, over 50 five-star hotels around the world are using this product of advanced technology, and they all report stable product quality and easy maintenance of the electronic door locks.

Advanced features: all mechanical parts are made of stainless steel materials; a driving process of the electronic door lock for door opening is achieved upon simple contraction and release of the relative sealing steel ring; the mechanical parts don't abrade the electr onic parts, realizing "complete isolation" according to the spot test of 1,000 electronic door locks with professional test instrument and tools to the highest industrial standards, the eligibility rate of each door lock imulating 100,000 times of door opening action is 100%,and the stability is really outstanding. compared with the eligibility rate of 80% for the door locks adopting the first generation driving unit, which simulated just 10,000 times of door opening action, the test level of the door locks adopting the second generation driving unit is raised by ten times, and the product quality has been apparently improved.