Orpheus-PRO is a voice fire alarm sounder with a radio channel, broadcasting recorded speech messages that direct occupants during evacuation instead of relying on tone signals alone. The unit stores up to 32 messages in memory and develops a sound pressure level of 92 dB at one meter — sufficient to cut through ambient noise in retail, office and industrial interiors.
Housed in a compact disc-shaped body 180 mm in diameter and 57 mm high, it operates from −10 to +55 °C, and the radio interface eliminates signal cabling between the panel and sounders, the dominant cost in retrofit installations. Voice alarm is increasingly mandated for buildings with mass occupancy because spoken instructions measurably accelerate evacuation compared with sirens.
At ninety dollars with a 20-unit minimum order, the device addresses fire-safety integrators, security wholesalers and contractors retrofitting alarm systems in occupied buildings where running new cable is disruptive and expensive.
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