UL Listed Analogue addressable Multi Sensor Detector
DF 303-MD analogue addressable photoelectric smoke/heat detectors are microprocessor controlled state-of-the-art detectors suitable for connection to addressable fire detection control and indicating equipment. Up to 254 detectors can be connected to each alarm zone loop. Advanced electronics in conjunction with a photoelectric smoke sensing chamber and an electronic thermistor provide early detection of fire and high immunity against unwanted alarms. The heat sensor provides sensitive rate-of-rise or fixed-temperature operation when the response threshold value is exceeded. The DF 303-MD range of analogue addressable detectors provides fire detection and alarm system designers with a Standards-compliant, premium fire detector for life safety and property protection applications.