Soundoff Signal ETSA481CSR Nergy 400 Series Console Siren W/ Knob Control, 10-16V - 100 Watt Single-ToneSoundoff Signal ETSA481CSR Features Console Sirens feature eight auxiliary buttons for one touch programming and a three position slide switch to allow convenient switching for the most frequently used warning modes Button Console Siren Features a four push button switch Features an eight second buzzer alert to notify users that the level or auxiliary buttons are activated Horn ring scroll provides ability to quickly change tones with the tap of the