Overview: SL-E152SLD an Electric Bolt Lock is a motor or solenoid actuated symmetrical dead-bolt mechanism, used for specific applications where Electric Strikes and Electromagnetic Locks cannot be used, such as double action 180 degree swing through or sliding doors. In many cases Electric Bolt Locks are used as additional or secondary locking device. The locking status and door status of the drop bolt can be remotely monitoredã?? 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. Special design lock for Up and down frameless glass door 9. CE certification and the Ministry of Public Security MA test report