Turbo series alarms are available in seven different tones (continuous, beep, warble, siren, whoop, staccato, and chime), two volume levels, and four terminations. Operating voltage ranges cover 5-30Vdc, 5-15Vdc, 9-48Vdc and 5-24Vac/dc. All Turbo models are UL recognized. Alarm size is approximately 1" in diameter by 1" tall.