I.Application It is used in army and ministry of public security to keep gun’s safety, such as pistols, rifles, submachine guns and so on. II. Product characteristics 1. Working style: It locks when the power is off and opens quickly when it is electrified with (12V). It can be used in all kinds of intelligent signal attachments. 2. Specification size: 95mm length 56mm width 13mm thickness 3. Urgent unlocking: It is equipped with mechanical lock function. 4. Energy saving: It needs only less than 1second to electrify when it unlocks. It does not need electricity when it is locked(voltage12V, electric current can be 2A ) 5. Status Output: There are signals about the lock's states, which is used to detect the door's working state(open or closed). 6. Security: It is anti-vibration and against picking locks. It can be used in police, military and so on.