Honeywell Home 5820L Wireless Slim Door/Window Transmitter

Protect vulnerable entry points without bulky hardware—ideal for installers who need a low-profile, reliable sensor for residential and commercial projects. The Honeywell Home 5820L wireless slim door/window transmitter delivers discreet intrusion detection and continuous monitoring for casement and double-hung windows where space is limited. At nearly one-third smaller than standard transmitters, the 5820L installs quickly as a surface-mount magnetic contact and integrates seamlessly with 5800 Series receivers and VISTA security systems. Battery-powered with a 1.5V lithium cell, it provides long operational life to reduce maintenance and callbacks. Built with a normally-closed reed switch for dependable contact sensing, this wireless transmitter supports consistent alarm reporting and surveillance-focused installations. Use the 5820L to strengthen perimeter protection, enhance intrusion detection, and streamline retrofit upgrades. Add the Honeywell Home 5820L to your next installation for compact, professional-grade security—order now or contact our sales team for volume pricing.

• Slim profile fits narrow casement and double-hung windows for discreet, space-saving monitoring
• Compact design reduces installation time and simplifies retrofit projects
• Long-life 1.5V lithium battery minimizes maintenance and service calls
• Surface-mount form factor for fast, reliable placement on doors and windows
• Compatible with 5800 Series receivers and VISTA systems for easy integration into existing security platforms