SAHO Mobile is a set of mobile punching and scanning QRCode to open the door lock. It is a part of the company's SMS (Saho Management System) package options. Through the SAHO Mobile App, you can report whereabouts to the company anytime, anywhere, and through your mobile phone. The lens can open the designated door lock. If you are interested in using this system, or want to learn more about our SMS (Saho Management System), please contact our company. Taipei Headquarters Phone: + 886-2-2523-