ACS ACM120S-SM Contactless Small Module

ACS ACM120S-SM Contactless Small Module


  • $10.00

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
  • Built-in anti-collision feature  (only 1 card is accessed at any time)
  • Selective card polling capability (especially useful when multiple cards are presented)
  • Easy-to-install for standard single-gang electrical switchbox 
  • Operation LED
  • Buzzer
  • Relay

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