The Bold SX-43 Smart Cylinder Lock is the perfect proximity solution for home or business, providing access via smartphone rather than keys. This cylinder is designed to replace your existing Euro cylinder and includes a tumbturn on the inside and a proximity knob on the outside. The outside knob is IP54 weather resistant, for use outdoors and includes a CR123A battery that provide up to 20,000 operations. The outer side of the cylinder includes size extenders which allows you to adjust the length between 30-45mm, to ensure a perfect fit.

Controlled online or by smartphone

Control each cylinder via the free Bold smartphone app*, where you can provide, schedule and revoke access remotely. The system allows multiple administrator and an unlimited amount of users.

*Requirements: Compatible with Apple iOS and Android smartphones. Please check Smart Device App below for compatibility. We recommend downloading the app before purchase to check compatibility.