GRI 8839-W Contact Tamper Switch

Protect access points and improve alarm reliability with the George Risk Industries GRI 8839-W contact tamper switch. Designed as a tamper-resistant magnetic contact solution, the 8839-W is ideal for perimeter security, access control, and surveillance installations where preventing tamper-related faults and false alarms is critical. The unit ships with a PBF-2020-W assembly and a 2366 bracket to simplify mounting and speed field deployment, reducing labor and downtime. Built by George Risk Industries in the US, this durable magnetic contact switch is engineered for consistent performance in commercial security and monitoring systems. Integrators and facility managers will appreciate the robust construction, compatibility with standard alarm panels, and the clear tamper indication that improves event accuracy for remote monitoring and incident response. Use the GRI 8839-W to strengthen door, window, and cabinet protection in retail, healthcare, education, and industrial environments. For a reliable component that minimizes service calls and enhances overall surveillance effectiveness, add the GRI 8839-W to your next security deployment or contact our sales team to order.

• Prevents false alarms and unauthorized access by providing a tamper-resistant contact switch for perimeter security
• Includes PBF-2020-W with 2366 bracket for quick, secure mounting and reduced installation time
• Rugged, US-made construction ensures long-term reliability and lower maintenance costs in demanding environments
• Compatible with industry-standard magnetic contact systems for seamless integration with alarms and monitoring platforms
• Enhances surveillance and access control accuracy by delivering consistent, dependable contact status reporting