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The APA151 piezo annunciator proivides an audible alarm signal, a red LED to indicate alarm status, and a green LED to indicate power status.


  • For use with 4-wire conventional duct smoke detector applications
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Operating Voltage: 16 to 33 VDC
Maximum Alarm Current: 30mA
Temperature Range: 32°F to 120°F (0°C to 49°C)
Relative Humidity: 10 to 93% RH (Non-condensing)
Wire Gauge: 12 to 18AWG
Systems Monitoring
Smoke Detection
SDS Product Sheets Cross Reference Information
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