Series 65 Ionisation Smoke Detector

Product Overview

The Series 65 Ionisation Smoke Detector uses a low activity radioactive foil to detect fires by irradiating the air in the smoke chambers and causing a current flow. If smoke enters the chamber, the current flow is reduced leading to an alarm.


  • Responds well to fast-burning, flaming fires
  • Designed to operate in a variety of environments
  • Wide operating voltage
  • Flashing LED and magnet operated test switch option


Approvals: AS7240.7


Voltage 9-33 VDC
Quiescent current 20-45μA 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 153 grams

Item Numbers

4106-1002 Series 65 Ionisation Smoke Detector