AJAX 42797.03.BL3 Wireless Magnetic Opening Detector, Black

Protect entry points across offices, retail locations, and commercial properties with the AJAX 42797.03.BL3 DoorProtect — a wireless magnetic opening detector engineered for reliable indoor perimeter security and monitoring. As part of the AJAX DoorProtect line, this black door/window sensor delivers enterprise-grade performance with up to 7 years of battery life and a reed switch rated for 2,000,000 openings, minimizing maintenance and downtime for high-traffic doors. Two magnet sizes and a built-in NC input allow flexible mounting and easy integration with third-party detectors or specialized hardware, while two-way encrypted RF communication up to 1,200 m ensures stable, secure links to hubs and extenders across larger installations. Installers benefit from rapid QR-code pairing and full remote setup through the AJAX app, making deployment faster and simplifying ongoing management. Designed for IT, facilities, and security teams, the DoorProtect sensor supports dependable intrusion detection and surveillance workflows. Add this AJAX wireless magnetic contact to your security system for smarter perimeter monitoring — ideal for storefronts, offices, and multi-site deployments. Order now or contact sales for bulk and integration options.

• Reliable perimeter protection for doors and windows, ensuring uninterrupted security monitoring and rapid alarm activation for businesses
• Low-maintenance operation with up to 7 years of battery life, reducing service visits and total cost of ownership
• Flexible installation options: two magnet sizes and an additional NC input to integrate third-party detectors or fit narrow frames
• Secure, long-range RF communication (up to 1,200 m) with two-way encryption for dependable connection across larger sites
• Fast setup and management via app and QR-code pairing, enabling quick deployment and remote configuration for IT and security teams