Please Note: The DSC SD-15W-ULF dual tone alarm siren has been discontinued and replaced by the UPG80112 model number.
SD 15W-ULF DSC 15 Watt Dual-Tone Alarm Siren Product Description:
The DSC SD 15W-ULF is a self-contained, surface-mount, untampered dual-tone interior siren. It is designed for household burglar alarm system accessory and also suitable as an audible signal appliance for fire alarm systems. When power is applied to the alarm siren, it produces an audible steady yelp tone according to the wiring.