DORMAKABA 900 Series 938 Digital Lock With Key Override

The dormakaba Simplex 900 Series 938 is a robust, fully mechanical digital lock designed to provide reliable keyless access control without the hassle of batteries, wiring, or electrical connections. This weather-resistant unit is ideal for both light commercial and residential applications, featuring a key override function that allows for emergency bypass or integration into master-key systems.

Operating via a 5-button keypad, the Simplex 938 supports a single user code of 1 to 5 digits, offering over 1,000 possible combinations. Code changes are quick and straightforward, completed directly on the door without removing the unit. The lock is equipped with a reversible rim deadlatch, a protective clutch mechanism to guard against forced entry, and a convenient latch holdback feature to allow free passage when required. Suitable for doors between 44mm and 54mm thick, it offers a thumbturn for free exit from the inside and a thumbturn on entry of the code or key from the outside.

Technical Specifications

• Brand: dormakaba
• Model: 938 (900 Series)
• Lock Type: Rim Deadlatch
• Backset: 65mm
• Case Depth Required: 94mm
• Door Thickness: 44mm to 54mm
• Key Override: Yes (1 key supplied)
• Code Length: 1 to 5 digits (1,000+ combinations)
• Handing: Reversible (non-handed)
• Finish: Satin Chrome
• Holdback: Yes (latch holdback)
• Weather Resistant: Yes
• Operation Outside: Thumbturn on entry of code or by key
• Operation Inside: Thumbturn free exit

Key Features

• Fully Mechanical Operation: Eliminates the need for batteries, wiring, or electrical maintenance.
• Key Override Function: Allows emergency access or integration into master-keyed systems.
• Fast Code Changes: Easily update the access code while the unit remains fitted to the door.
• Protective Clutch Mechanism: Prevents damage to the lock mechanism from forced entry attempts.
• Latch Holdback: Allows the latch to stay retracted for free passage when required.
• Weather Resistant: Built to withstand outdoor elements, making it suitable for external doors.