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4-Tone Beacon/Sounder D-155

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4-Tone Beacon/Sounder D-155 Demco Alarm Sounder Fire Alarm System


DEMCO Sounder/Beacon D-155’s compact design is acoustically very efficient, capable of generating high sound output at low current levels. Both models have a wide angle uniform sound distribution providing good audibility in all directions, thus making them ideal for fire, security and hazard warning.



SPECIFICATION
  Lowest Highest
Output @ 1 metre 24VDC 68dB 95dB
Current @ 24VDC 13mA 22mA
Voltage Range DC 20 – 28VDC
Voltage AC 230V AC (D-145AC and D-155AC)
Operating Frequency 800Hz to 1000Hz
Number of Tones 4 Alarm Tones • 3 Alarm Tones (D-145AC and D-155AC)
Volume Control Adjustment Screw
Operating Temperatures -20°C to +70°C
Size (H x W x D) 100 X 95 X 99mm
Protection Classification IP55 (D-155) • IP65 (D-155WP)
Approximate Weight 182g (D-155) • 257g (D-155WP)
235g (D-155AC)

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