Pros :
- Award winning locking system
- It has built-in rechargeable lithium battery which is a big advantage than ordinary type of batteries
- It is Weatherproof which has a layer of protection
- Unique fingerprint technology
- It is designed and engineered in the USA which means it has high quality standards
- Solid stainless steel
Cons :
- Can only recognized up to four users. It should be at least ten, so it can support bigger team or a group of people