This is the solution to an small group of people in need of Biometric Solution that is efficient and budget friendly too. The answer to what is required for the most basic Attendance Needs. The right CPU is the heart of this device, giving user the required speed in everyday functions. Internal Battery Backup. An ample source of power within the device is present for some scenarios. Wont we give what a user needs, whether the user has to verify ink, mehndi or any colour, even rough, dry fingers too.BM20 Pro follows the ethnic way of LAN cable based network. It also have the USB medium for manual data log fetching as well as SSR Report. N-BM20 + ID is produced keeping only one thing in mind, what if we have a small workforce of about 50 person and we want to manage attendance.