System Sensor B200SR-LF-IV
System Sensor B200SR-LF-IV
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The System Sensor B200SR-LF-IV is an addressable low-frequency sounder base designed to enhance fire alarm systems by providing audible alerts in compliance with NFPA 72 sleeping area requirements. This ivory-colored base emits a 520 Hz ±10% square wave tone, proven effective in waking individuals, including those with mild to severe hearing loss. It offers flexibility with selectable tone patterns—ANSI Temporal 3 or Continuous—adjustable via an onboard jumper. The B200SR-LF-IV is compatible with existing B501BH-Series sounder base installations, ensuring seamless integration into current systems. Its pre-wire mounting plate fits various junction box sizes, facilitating straightforward installation. A mechanical locking feature prevents unauthorized removal of the attached sensor head, enhancing security. This sounder base operates within a voltage range of 16 to 33 VDC and is UL 268 and UL 464 compliant, ensuring adherence to industry standards.
Key Features:
• Low-Frequency Tone: Emits a 520 Hz ±10% square wave tone, ideal for sleeping areas.
• Tone Selection: Offers ANSI Temporal 3 or Continuous tone patterns via an onboard jumper.
• Compatibility: Works with existing B501BH-Series sounder base installations.
• Easy Installation: Pre-wire mounting plate accommodates various junction box sizes.
• Tamper Resistance: Mechanical locking feature secures the attached sensor head.
• Standards Compliance: Meets UL 268 and UL 464 requirements.

