RFSIR102 is a professional indoor wireless sounder equipped with a powerful piezoelectric transducer which guarantees a high sound pressure level. It stands out due to its stylish design, the ease with which it can be mounted on every type of surface and the option of configuring tones and/or LED flashing on arming/disarming. Every setting can be changed remotely, without having to open up the sounder; several jumpers are also provided for the main settings, allowing customised installation without the use of software. Battery included.