Zenith Controls & Systems Pvt Ltd manufactures Time Attendence and Access Control System. Zenith Controls & Systems Pvt Ltd is an ISO 9001: 2000 certified company. The Company also manufactures Computer based Real Time Data Acquisition Systems, Computerised Attendance Recording Systems and Access Control Systems. The Time Attendence and Access Control System, Model CA-202, has barcode, proximity and smartcard reader option. The Time Attendence and Access Control System has integrated onboard TCP/IP at 10/100 Mbps. This System has online/offline downloading and directup gradation of data in the database. This System has flash memory of 512 KB. This System has onboard eight channel A/D convertor and comparators for logical operation.