Sigcom AMH-TMH Series Hazardous Area Signaling Devices

Hazardous Area Amplified Speakers – AMH Series

AMH Series signals are high output continuous duty amplified speakers for industrial signaling and fire alarm applica­tions. AM Series signals draw extremely low power from the audio system while producing audio reproduction up to 107 dBA. Each AM Series signal features a rugged speaker cone and a projector built with spun aluminum. The amplification, power management, and other internal circuitry are built into a rugged die cast aluminum housing which is sealed with powder coat paint and includes dust and moisture proof gaskets

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AMH Series is approved for indoor and outdoor use and suitable for NEC Class I, Division 2, Groups A, B, C, and D; Class II, Division 2, Groups F and G; and Class III hazardous areas. Typical applications for AM Series include fire alarm systems, emergency warning, plant evacuation, pro­cess control, and public address signaling as well as voice evacuation and mass notification systems.


  • Designed for industrial signaling in hazardous areas including
    • Emergency warning
    • Process control
    • Plant evacuation
    • Public address
    • Emergency Communication Systems (ECS)
  • UL Listed for fire alarm signaling
  • Digital signal amplification
  • High audio output with extremely low current draw
  • UL Listed for indoor and outdoor use
  • Suitable for areas with high ambient noise
  • User selectable audio line level 25 or 70 Vrms – no additional modules needed
  • Available for 24 VDC and 120 VAC; red or grey powder coat finish