Factsheets Here you will find all the factsheets and technical details about our products. Factsheets stationary sirens Directional Alarm Sounder 128 dB(A) at 1 m distance 410 m range at 65 dB Delta 1 130 dB(A) at 1 m distance 480 m range at 65 dB Delta 2 106 dB(A) at 30 m distance 700 m range at 65 dB Delta 4 112 dB(A) at a distance of 30 m 920 m range at 65 dB Delta 6 115 dB(A) at 30 m distance 1115 m range at 65 dB Delta 8 118 dB(A) at 30 m distance 1235 m range at 65 dB Pneumatic TYFON® 120 dB(A) at a distance of 30 metres Factsheets control units Siren control unit AT Global 250-500-750-1000 Display, multilingual,log book, voice speech Siren control unit AT/AT-M 250-500-750-1000 Z+K Display, multilingual,log book Self-sufficient siren system KS Solar 200 & 400 - full functionality independently of the power grid Factsheets mobile sirens SirMobile + DAM150 122 dB(A) at a distance of 1 m Voice messages, live voice announcements and touch display SirMobile + TK150 No longer available Hazard Alarm Siren 128 dB(A) at 1 m distance Operated via compressed air cylinder Electronic siren for trains TYFON® 120 dB(A) at 5 m distance -40°C to +70°C Pneumatic siren for trains TYFON® 125 dB(A) at 5 m distance -40°C to +70°C