U990 is a standalone biometric Attendance machine (fingerprint machine) + Access Control system with IN and OUT status. This machine also have low price with good performance, designed especially in the purpose of popularizing the fingerprint products. it can identify and authenticate the person at time time of door entry pretty quickly. This also has an access control system which can be used to control door lock. It could store 3,000 fingerprint templates and 1,00,0000 transaction records. It will bring you much profits because of its low price