Level C-D11U Universal Smart Deadbolt 2-3/8 and 2-3/4 Inch

Product Description

The LEVEL C-D11U is a concealed smart lock mechanism designed to replace the internal bolt assembly of a standard deadbolt without altering the exterior appearance of the door. The unit fits inside the existing door hardware, leaving no visible indication of a smart lock from either side. It supports both 2-3/8 inch and 2-3/4 inch backset configurations, making it compatible with the most common residential door prep dimensions. The integrated battery is housed inside the bolt itself, keeping the installation clean and free of external battery packs or visible electronics. Installation is performed by a locksmith or skilled tradesperson and requires no modification to the existing door face hardware.

The C-D11U is intended for residential applications where a discreet smart lock solution is required. Because the mechanism replaces only the internal bolt assembly, the existing deadbolt exterior trim, thumbturn, and strike plate remain in place. This makes it well suited for rental properties, HOA-restricted buildings, or any installation where maintaining the original door hardware appearance is a requirement. The unit ships as a single piece (sold individually) and accommodates the two standard backset measurements found in the majority of residential entry door installations.

Key Features

• Invisible installation: no external hardware changes required on the door face or interior trim
• Supports 2-3/8 inch and 2-3/4 inch backset configurations
• Battery concealed inside the bolt assembly for a clean, unobtrusive profile
• Designed as a direct internal replacement for standard deadbolt mechanisms
• Single unit sold individually (EA sales unit)

Compatibility

Designed as a concealed smart lock replacement for standard residential deadbolts with a 2-3/8 inch or 2-3/4 inch backset. No specific compatible model numbers are provided in the product data. Verify door prep dimensions and deadbolt brand compatibility before ordering.

Installation Notes

Installation is typically performed by a licensed locksmith or qualified tradesperson familiar with residential door hardware. Power down any associated smart home hub or controller before beginning work. Remove the existing deadbolt assembly fully before inserting the C-D11U mechanism, and confirm the correct backset measurement prior to installation. Follow all applicable local building and life-safety codes governing egress hardware when replacing door lock components.