Radio sound diffuser

New radio type 4 radio and its full range of devices: Radio manual trigger, sound diffuser & bright radio. Ideal for all small institutions receiving the public where type 4 alarm equipment is requested by the regulations to protect people and property against fire. This complete range thus meets the constraints related to the structure of buildings that do not allow cable draw such as classified buildings or historic monuments. Indeed, all devices communicating by radio wave with the plant, the simple fact of hitting a manual shutter will suffice to diffuse the sound and bright alarm through the different radios peripherals positioned in the building. The evolution of the power plant 4 radio allows to pair a second plant in the system that will increase the radio range and the number of radio devices.