Function and Purpose

The magnetic contact sensor represents a central element in professional access control systems and was specifically developed for the reliable monitoring of the status of doors, windows, and other access points. Through precise detection of the position – open or closed – the sensor ensures seamless security monitoring that is essential for protecting sensitive areas. The system consists of two robust components: a permanent magnet and a high-precision reed switch sensor, enabling contactless detection with an accuracy of over 99.9%. This technology eliminates mechanical wear and minimizes false alarms even under intensive use.

Integration into the Didactum monitoring system is effortless via all analog ports (A1 to A8), ensuring flexible configuration and central management of all sensors. Thanks to the advanced daisy-chaining function, up to 32 sensors can be connected in a single wiring chain, reducing installation time by up to 70% and achieving significant cost savings in cable infrastructure. This scalable architecture is ideally suited for applications ranging from small office complexes to extensive industrial facilities and multi-family homes. For large-scale installations, the sensor extension unit provides expansion of the sensor count to over 256 units as well as a total cable length of up to 500 meters, enabling seamless coverage of multiple building floors or locations.

The mounting of the magnetic contact sensor is extremely straightforward and requires no special expertise: Included in the scope of delivery are double-sided adhesive strips for contact-free surfaces, screws with dowels for secure mounting, and universal brackets for flexible alignment. The standard cable length of 2 meters (RJ11/RJ12 6P4C) provides sufficient flexibility for most application scenarios, while the minimal power consumption of just 60 mW supports seamless integration into energy-efficient 24/7 operating environments. The extended operating range covers temperatures from -20 °C to +85 °C as well as relative humidity from 0% to 100% (non-condensing), enabling use in server rooms, production halls, medical facilities, archives, and even outdoor areas.

Beyond pure status monitoring, the magnetic contact sensor offers advanced intelligent functions, including customizable alarm thresholds, detailed event logging with timestamps, and complete integration into SNMP v2c/v3, Modbus TCP, and email/SMS notification systems. This creates an intelligent, networked security system that not only detects unauthorized access in real time but also logs maintenance activities, generates access statistics, and triggers automated responses such as lighting control or ventilation. Particularly in critical infrastructures such as data centers, hospitals, museums, banks, and manufacturing facilities, the sensor continuously secures access and meets the highest compliance requirements according to ISO 27001 and GDPR. With a planned service life of over 15 years and proven Didactum quality, the magnetic contact sensor represents a future-proof investment that ensures the highest security standards and remains up-to-date through continuous firmware updates.