System Sensor released its Advanced Multi-Criteria Fire Detector. The detector combines four separate detection methods into one product. It uses advanced algorithms to interpret signals from each sensor to monitor every product of combustion, while adjusting itself and responding to changing conditions. The detector combines a carbon monoxide (CO) sensing cell, an infrared sensor, a photoelectric smoke sensor and a thermal sensor. If one of the sensors detects a fire condition, the detector verifies the condition with another sensor before going into alarm. The detector has six levels of sensitivity that can be matched to the conditions of a particular application. As site conditions change, an internal algorithm changes sensor thresholds, sensor combinations and sampling rates to ensure faster response to fires and immunity to nuisance alarms. It is ideal for applications where superior response to true fire is essential for life safety, but serious disruptions caused by nuisance alarms must be prevented.