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Key Systems

Mul-T-Lock MT5+ CLIQ

Mul-T-Lock’s technology merged with CLIQ® presents a hybrid mechanical locking solution, which offers the tried-and-true reliability of superior mechanical keys and cylinders and the programming sophistication and flexibility inherent in electronic locks. Available in both MT5®+ and Interactive® platforms MT5®+ CLIQ® and Interactive® CLIQ® (For Commercial and E-Master Key Systems) Mul-T-Lock is proud to be among the first [...]

Mul-T-Lock MT5+ Interactive

MT5®+ Systems The Future Starts Now – Mul-T-Lock’s MT5®+ Platform is Here MT5+®, Mul-T-Lock’s fifth generation of high security offers: long-life patented key control; pick, drill and bump resistance and utilizes three active locking mechanisms: 1. A revolutionary, patented, mobile interacting Alpha spring at the tip of the key to engage a unique, additional rear cylinder pin. 2. A [...]


Primus® Commercial High Security Cylinder System Key Control Hardware Primus answers the issue vital to maintaining security, the elimination of key duplication. A patented “dual-locking” feature is tailored to suit your particular needs. The Primus key, with side-bit milling along the key blade, is designed to operate both standard as well as Primus keyways. A [...]

Mul-T-Lock Interactive

Mul-T-Lock Interactive

Mul-T-Lock Ltd. is a worldwide leader in developing, manufacturing and marketing High Security products for  institutional, commercial, industrial and residential applications.  Mul-T-Lock® high security cylinders have a unique telescopic pin tumbler mechanism with internal and external pins. Both the internal and the external shear lines must  be aligned simultaneously in order for the plug to rotate. The Mul-T-Lock [...]



Patented lock technology is an important factor in your security. A weak patent can be overturned, allowing other companies to use the same technology. This makes it more likely that keys made by other companies will fit your locks. Medeco® has engineered cylinders and high security hardware to retrofit most popular locksets, so institutions can [...]