Warden Security Systems Pvt Ltd specialises in providing products in the filed of Biometrics and RFID Technology. The company provides devices with a vast range of softwares like Time attendance software, Access control software, Smart card based club management software, Campus management software, loyalty solutions. PC-Linked Smart Card Readers, ACR30 is a compact and cost-effective reader which supports all microcontroller cards with T=0 or T=1 protocols as well as the popular memory cards. It supports smart cards. The ACR30 is also EMV Level 1 and Microsoft PC/SC certified, and supports all major PC platforms. It is a single chip solution, with EMV level 1. This is the cost effective solutions for banking, e-commerce, information security, computer access control, electronic identification, and other smart card applications. The ACR30 smart card reader/writer can be connected to the computer through a serial asynchronous interface [RS-232]. The reader, Serial [ACR30S] has an optional built-in Security Access Module [SAM] slot that supports various high security applications. The ACR30 is also available in two types of casing, the original Piano casing and the new CyberFrog casing. The ACR30 is also supplied in module form [ACM30]. This is an ideal solution for integrating smart card access into applications. The module retains the full functionalities of the reader/writer, and can be easily integrated in payphones, parking meters, vending machines, laundries, gaming machines, ATM`s, sophisticated access control systems. The Technical Specifications of the Smart Card Readers Interface RS-232 [Serial], Supply Voltage Regulated 5V DC, Supply Current <100mA [without smart card], Operating Temperature 0-50oC, CLK Frequency 3.68 / 4 MHz, Operating System Support Windows 98, ME, NT, 2000 and XP, Linux. The salient features of the PC- Linked Smart Card Readers: