GST DC-9102 innovation optical detector is a new-generation product. With built-in microprocessor, the detector is highly fixed with reliable fire judging program. The detector is developed from sensing chamber by scattering theory. It has the ability to resist dust contamination and environmental light. The detector utilises drift compensation algorithm, when the environment is changing, such as dust accumulation, humidity and temperature changing, the detector can figure out these drift variation to make up for sensitivity, thus the amount of smoke needed to generate an alarm remains constant, irrespective of environmental conditions.