- Protect doors and windows with a magnetic detection switch set that monitors opening and closing to enhance security. - Wireless 433MHz transmission enables quick, cable-free communication to your alarm system or receiver. - Reliable sensing with high quality magnetic sensor contacts, strong magnetism, sensitive response, and good durability for long term use. - Easy to install and use, and a practical replacement for old contacts with simple installation and no trouble. Key features and performance - Function: Magnetic detection switch set designed to protect doors and windows by monitoring their open or closed state. - Transmission: 433MHz wireless transmission for seamless integration with compatible alarm systems and receivers. - Compatibility: Suitable as a replacement for old contacts in 433MHz wireless setups; intended for use on doors and windows. - Build quality: High quality magnetic sensor contacts with strong magnetism and a sensitive response pair, built for durable performance. - Installation: Simple to install and operate, providing a straightforward upgrade without complex wiring. Use scenarios - Home entry door and ground floor window protection: install on main doors and first floor windows to detect entry attempts and trigger alerts. - Small business storefront: protect front door and shop window displays to deter tampering and gather security signals without intruding on the storefront. - Apartment or office spaces: secure balcony doors, interior doors, or secondary windows where wireless monitoring is preferred and easy to replace existing contacts. What you gain - Proactive protection for doors and windows with a wireless, easy-to-integrate solution. - A durable, sensitive magnetic sensing option that can serve as a reliable replacement for older contact devices. - Flexible use in residential or small commercial security configurations with minimal setup effort.