The STid Arc One Mullion is the kind of reader that earns its place in a serious access control installation — compact enough for door frames and narrow mullion positions, without any compromise on security. Operating at 13.56 MHz and supporting both MIFARE® and DESFire® card technologies, it delivers a reading range of up to 6 cm in a form factor built specifically for tight mounting environments.

Waterproof electronics and high impact resistance make it well-suited to Irish conditions — whether it's mounted in a sheltered internal corridor or exposed to the elements at a building perimeter. The Arc One Mullion integrates cleanly into almost any installation without requiring structural changes or oversized hardware.

For installers and security managers specifying access control for sites where aesthetics, space, or environmental exposure are a concern, this is a considered choice from a manufacturer with a strong track record in high-security reader technology. Manufacturer part number — Standard: ARC1-R31-B/PH5-3i/1 | Bluetooth: ARC1S-R31-B/BT1-3i/1.