Neutronic TT5PL-RF3 radio battery-powered PPMS alarm with manual trigger. 2 class B PPMS sounds (more than 90 dB) Flash color / frequency Blue / 1 Hz +/- 12%. The civil security plan is intended to deal with major risks (natural disasters, technological accidents or specific emergency situations) The products meet the requirements of the Official Bulletin of National Education (and its annexes), the instructions of the Ministry of the Interior and National Education and the guide to good practices published by the General Secretariat of Defense and national security for attack alerts in educational establishments. They also make it possible to secure all establishments open to the public.