Sterling’s DoorMinder 3 star Euro cylinders hold pride of place at the top of Sterling’s popular range of Euro profile cylinders. 

Independently tested to and passed the latest TS007:2014 standard, these British Standard Kitemarked cylinders are Snap Safe and include anti-drill, anti-pick and anti-bump protection.  For added security, 3 star DoorMinder cylinders feature an innovative and patented cam locking mechanism, which is automatically engaged when the key is removed.

Available in single, double and thumbturn models, DoorMinder cylinders cover a wide range of sizes from 70mm to 100mm.  Featuring a standard section keyway, Kitemarked DoorMinder cylinders are offered in both master-key and keyed-alike variants, whilst a full range of pinning and key-suiteing services are also available.  For added piece of mind all Sterling cylinders come with a 10-year guarantee.