Series 65 Optical Smoke Detector

Product Overview

The Series 65 Optical Smoke Detector incorporates a pulsing LED located within the housing of the detector. The external detector moulding is identical to that of the ionisation detector but has an indicator LED which is clear in quiescent state but produces red light in alarm.


  • Responds well to slow-burning, smouldering fires
  • Well suited for bedrooms and escape routes
  • Unaffected by wind or atmospheric pressure
  • Wide operating voltage
  • Flashing LED and magnet operated test switch option



Voltage 9-33 VDC
Quiescent Current 30-50µA at 24 VDC
Alarm Current 52mA at 24 VDC
Size (inc Base) 100mm Dia x 50mm H
Operating Temperature -20°C to +60°C (no icing)
Relative Humidity 0 to 95% (non condensing)
IP Rating IP23D (EN60529)
Weight (inc Base) 150 grams
Sensitivity 0.15dB/m Obscuration


Item Numbers

55000-317AMP Series 65 Optical Smoke Detector