The Apollo 55000-300 was a Conventional Optical Smoke Detector from the Series 60 range of detectors. This range of detectors has now been replaced with the Apollo Series 65 range of conventional detectors. The Apollo 55000-300 detector has been replaced by the Apollo 55000-317 device which can be used as a like for like replacement. The Apollo 55000-317 can be used with the Series 60 range of base plates.
The Apollo Series 60 range of detectors has been replaced by the Series 65 range of devices. The Series 65 range of equipment includes Ionisation and Optical type smoke detectors. The series 65 range also features a wide range of heat detectors ideal for use in kitchen areas and other environments where smoke detectors are not suitable.