Description Apollo Optical Smoke Detector The Apollo XP95 Optical Smoke Detector 55000-600APO, features a distinctive indicator LED, clear in standby and red in alarm. Its internal design includes a printed circuit board with an optical measuring system surrounded by a light-proof labyrinth chamber. The infrared light emitting diode emits a burst of collimated light every second. When smoke enters the chamber, it scatters photons onto the photodiode, triggering the alarm. This optical smoke detector is crucial for maintaining safety and preventing fire hazards. Apollo Part Number: Standard – 55000-600APO VDS – 55000-620APO Black – 55000-660APO Made in the UK
