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The ALARM CONTROLS CORPORATION CY-1 is a mortise cylinder designed for use in commercial and institutional door hardware applications. Measuring 1.125 inches in face diameter, this cylinder ships with two differently keyed keys, making it suited for installations where unique key control is required. The CY-1 drops into standard mortise lock bodies and is installed by locksmiths, security technicians, and commercial door hardware professionals. Its solid construction and standard mortise format make it a practical replacement or new-install component in access control and door locking systems.
The CY-1 is intended for mortise lockset applications found in commercial buildings, institutional facilities, and secured entryways. It is commonly installed in doors requiring a cylinder-style locking mechanism integrated into a mortise lock body. This cylinder is sold as a single unit and includes two differently keyed keys, supporting basic key differentiation across a facility's locking hardware.
Designed as an OEM-style replacement or direct-install mortise cylinder for standard mortise lockset bodies used in commercial and institutional door hardware applications.
Installation should be performed by a licensed locksmith or qualified security hardware technician. Remove the mortise lock body from the door before inserting or replacing the cylinder to avoid damage to the lock mechanism. Ensure the cylinder cam is oriented correctly to engage the lock body before securing. Local building and fire codes may govern keying requirements and access control configurations in commercial occupancies.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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