ELK 6021 Two-Way Wireless Mini Window Sensor, White

Protect windows without compromising appearance or operation. The ELK Products ELK 6021 Two-Way Wireless Mini Window Sensor provides discreet, dependable window security and monitoring for both residential and commercial installations. Its ultra-thin surface-mount form fits double-hung and casement wood or vinyl windows while the built-in reed switch detects openings with precision. Using ELK’s two-way wireless technology and 902–928 MHz frequency hopping, the sensor delivers supervised communication to ELK two-way transceivers for consistent, interference-resistant reporting. Battery-powered operation and simple surface mounting reduce install time and lifecycle maintenance, making it ideal for retrofit jobs and new builds alike. Designed for seamless integration with ELK ELK-M1XRFTW transceivers, this magnetic contact transmitter supports scalable security and surveillance systems where reliable perimeter monitoring is critical. Choose the ELK 6021 for unobtrusive, professional-grade window protection—perfect for alarm panels, monitoring stations, and commercial security deployments. Order today to upgrade your window security or specify it for your next surveillance and access control project.

• Ultra-thin design for discreet window monitoring on double-hung and casement windows, preserving aesthetics and function
• Two-way wireless communication for reliable, supervised security reporting and reduced false alarms
• Compatible with ELK two-way transceivers to simplify integration into existing ELK security systems
• Surface-mount installation and battery power for fast, low-impact setup in residential or commercial projects
• Frequency-hopping 902–928 MHz radio improves interference resistance and ensures consistent connectivity