RADION wireless from Bosch provides the range, scalability and exceptional battery life required to ensure reliable performance and superior quality. Advanced diagnostics and multiple device enrollment options make installation and maintenance simple and cost effective. With a complete line of peripherals, RADION provides the flexibility for virtually any application requirement. System overview RADION keyfob allows you to arm or disarm the security system, or send a panic alarm. Programmed with a unique code, each model works exclusively with your compatible security system. On the four-button version, two option buttons are programmable to perform additional functions. Functions Panic alarm The keyfob sends a panic code to your monitoring company if your security system is programmed to do so. Press both the lock and unlock buttons simultaneously for more than 600 milliseconds to send a panic alarm. LED indicator The LED flashes to indicate a signal was sent to your security system. Programmable option buttons The keyfob can be programmed to control additional devices in your protected area. Two option buttons are available. Water and dust resistant The housing is designed to resist dust and be resistant to water. Encrypted transmission RADION Keyfobs with synchronized encryption feature increased immunity to replay attacks, providing even more reliable system security.