Alarm Horns & Sirens Yale

External Yale Sync outdoor siren for expansion The discreetly designed Yale Sync outdoor siren is used to expand an already existing Yale Sync alarm system. With its 104 dB loud alarm tone, it scares off potential burglars from a distance. Technical data / compatibility: - 104dB loud outdoor siren (at a height of 1m) - 200 meter range - encrypted communication - system detects jamming attacks on the radio signal - battery operated (incl.)