With its small size, the ACM120S Contactless Small Module can easily be installed in any standard-sized single-gang electrical switchbox without the hassle of drilling wall holes or reconstructing building circuitry. This entails a very simple and quick installation of a powerful contactless module that is ideal for a broad range of applications, especially physical access control and time and attendance.

With a mere wave of a contactless card, one can enable the ACM120S-SM to give off prompt read or write signals through its self-contained LED/buzzer, and at a blink of an eye, the relay is triggered to open the door for an authorized person attempting physical access.

• Compact size (70 mm x 45.3 mm)
• Serial RS232 interface
• Read and write functionality
• Built-in antenna for contactless tag access, with card reading distance of up to 50 mm
• Supports major contactless smart cards conforming to ISO 14443 Type A in the market
• Supports Mifare cards, including new Mifare Ultralight C and Mifare Plus SL1 (4 Byte UID) and SL3
• Built-in anti-collision feature (at least 1 card is detected when multiple cards are presented)
• Selective card polling capability (especially useful when multiple cards are presented)
• Easy-to-install for standard single-gang electrical switchbox 
• Operation LED
• Buzzer
• Relay

• Time and attendance
• Physical access control
• Logical access control
• Public transportation terminals
• Vending machines
• Automatic fare collection
• Metering