M3

The M3 is a premium mortise lock designed for versatility and long-term performance. Compatible with a wide range of mortise cartridges, it’s ideal for both upgrades and new installs across residential or mixed-use properties.

The M3 integrates seamlessly with DOOR OS and the DOOR App, combining durable hardware with modern smart access features in one refined package.

• Offline first and battery powered to ensure functionality if building power or internet fails (6 AA batteries last about 2 years). 

• Compatibility with a broad range of existing mortise cartridges, including Schlage, Sargent, Corbin, Marks, and Latch/TownSteel.

• Supports multiple unlock methods, including DOOR App, Physical Key, Keycard, Apple Watch, Android NFC, and 4-7 digit Doorcode.

• Automatic locking that enhances security without sacrificing convenience.

• Field reversible for on-site adjustments to left or right swinging doors

Best for: Residential Doors