A Chubb detector lock is a type of lever tumbler lock with an integral security feature, a form of relocker, which frustrates unauthorised access attempts and indicates to the lock's owner that it has been interfered with.

How does Chubb lock work?

Lever Locks (Known as Chubb Locks)

These are commonly known as Chubb Locks. They work much in the same way as cylinder locks but instead of pins and a spring a series of levers must be lifted to enable the bolt to move in or out of the door frame.

What type of lock is Chubb?

Trusted to secure homes and businesses for over 200 years, Chubb Locks make market leading night latches, mortice locks, and cylinder locks. Also known as Union locks, the C Series of locks offer market leading security for your home.