The VdS-certified bolt contact serves as a locking monitoring system for doors, gates, safes, etc. The electromechanical contact with a waterproof microswitch is embedded in the door frame and is activated by the lock bolt when the door is closed. The actuator lever can be individually shaped, ensuring that the contact works with various types of bolts. By inserting the cylinder pin into the switch lever, there is the option to mount the bolt contact laterally to the lock bolt cutout.