Product DescriptionThe HS-24 Series is a low profile horn/strobe combination that offers dependable audible and visual alarms and the absolute lowest current available. The HS-24 Series 24VDC offers tamperproof field selectable candela options of 15, 30, 60, 75, and 110 candela. The Horn/Strobe offers a continuous or sync temporal three in 2400Hz and mechanical tone, a chime and whoop tone. All tones are easy for the professional to change in the field by the use of switches.