This item must be installed by a certified locksmith or return may not be void.!!! 
Before ordering this item, you will need to determine if your safe uses a SWINGBOLT LOCK ASSEMBLY. If your safe has a deadbolt lock assembly or a different type, then this electronic lock will not work. We suggest that you contact the manufacturer of your safe to find out what type of lock assembly you have. 
Electrical parameters: 
Rated voltage: 6-9V 
Static power consumption: <30uA 
Undervoltage point: 7 ± 0.3V 
ADDITIONAL FEATURES: 
Product Name: Safe Lock 
Application: Gym, Cabinet, Drawer etc 
Unlock way: Fingerprint, Password 





Notes:
We will check the products carefully before shipping. 
After receiving the item, if you have any questions, please write to me, please do not leave negative feedback and low scores, and do not open CASE, I will try my best to help you solve the problem, as a seller, we will be responsible for everything. 
Contact us:
If you need any type of item, please contact us via eBay messaging service. We will respond to you very promptly. At our store, we make every effort to ensure that every buyer's experience is as valuable and enjoyable as possible. 
You can buy with confidence knowing you're getting a worry-free deal!