Specification: Die-cast entry case Cable connected, no spindle required Power supply: integrated 1*9V block battery compartment inside entry case Note: This product is a set of combination products, not detachable for use, please remove all your old parts and adopt all our new parts to work properly(Once you have completed the installation, be sure to press and hold the red button for 10 seconds to reset the system and it will be ready for normal use) Stong and Durable Gun Safe Lock: High grade chrome zinc alloy fire resistant panel that provides physical protection against forced entry and lockout mode for 5 times false codes(locked for 5 minutes) High Quality: Round shape 95mm / 3.74 inches panel and the weight is 6.35 ounces, strong vault door for enhanced durability, 1 user code and 200 fingerprints, alarm against destruction to the keypad Easy Operation & Installation: Right Swing Bolt lock including 2 override keys. Open with 3-8 digital codes that very easy to use and allows manual reset: a needle or a paperclip needed in case you lose the code including low voltage signal Application: All kinds of home safes & lock box, gun safes, pistol safes, hotel safe, cabinet safes, drop slot safe and most basic and medium security level safes on the market