Outdoor siren via radio. 103dB. IP34. Grade 2. Requires ER34615M battery included. Outdoor wireless siren with antifoam. The Hedera wireless outdoor siren is designed to be installed and programmed quickly and easily. The siren has numerous programmable parameters: sound, maximum alarm time, flashes per minute, signal activation mode, etc. The Hedera siren communicates with the SmartLiving and Prime control panels through an Air2-BS200 transceiver, through which it is controlled and supervised by the control panel. This greatly simplifies programming and allows the activation of different signals for different events, the parameters of which can be programmed directly in the control panel. Through the Air2 system, the control panel is capable of supervising sabotage, low battery, fault signals and the battery level. Hedera has self-diagnostic functions that allow quick detection of possible faults. During the installation phase it is also possible to select a specific signal for the loss of radio signal.