time attendance machine with built-in EM card Reader Delicate exterior with 4 line LCD Display & supports off-line operation 30000 cards capacity 50000 transaction storage capacity Pre-recorded Voice Messages Communication : RS232 / RS485 / TCP-IP Public & Private short message that can be sent to defined person Developed on the basis of LINUX Operation 2) Time & Attendance Software ( MSDE Based ) 3) 2 Amp SMPS Power Supply Adapter