CPG Signals Model SPHH PowerTone High Output Speaker is designed for use in hazardous locations. The unit producers a crisp, clear, high-decibel tone/voice output. Tones may be generated by the PowerTone Signaling System or any 25Vrms or 70Vrms tone/voice audio system. The speaker cone and projector are of spun aluminum.

The circuitry and tone card are contained in dust and moisture proof sealed housing of die-cast aluminum. The speaker has a supervisory DC coupling capacitor and wattage taps from 0.5 to 15 watts. The speaker is UL Listed for indoor and outdoor use, is NEMA 3 rated, and is finished in red enamel. The PowerTone Speaker is designed for connection to system supervised alarm notification circuits.