Advantage:

1. Photoelectric control technology, prevent mechanical failure.

2. Ultra-low temperature design, much safer and much more durable.

3. Ultra-low-power design, and much more environmentally.

4. More than 500 000 working times.

5. Built-in Current overload protection device.

6. Intelligent single chip configuration, three types current application.

7. High hardness zinc alloy die-casting lock body, stainless steel bolt

8. CE certification and the Ministry of Public Security MA test report