The DX50S is a fail secure solenoid bolt lock with follower and provision for a EURO-cylinder override. Designed for simple installation and operation, this lock provides effective and reliable security to a wide variety of projects. Unusually, for a lock of this type, power is not required on the door leaf. The innovative design means the keeper houses the electronics, so there is no need for door loops. The DX50S is suitable for both single and double action doors.