Bosch Wall/Ceiling 520Hz Horn, Red, SS-HR-LF

The SS-HR-LF from Bosch is a wall/ceiling 520Hz horn, red. A 520 Hz audible device designed for 12 VDC/FWR or 24 VDC/FWR circuits. The 520 Hz tone is more effective in waking individuals in sleeping areas.

Features

• 520 Hz square wave tone meets NFPA 72 sleeping area requirements
• Rotary switch for setting sounder for temporal three pattern, continuous pattern, or coded supply within the frequency range
• Plug-in design with minimal intrusion into the back box
• Listed for wall or ceiling mounting
• Compatible with SS-MDL3R synchronization module