Đầu báo nhiệt gia tăng dạng ống dẫn Hochiki DHA-1L
- The DHA-1L, 2L line type heat detectors is pneumatic detectors when the ambient temperature increases in the event of fire, the volume of heated air also expands.
- Air-filled sensing tubes transmit this pressure increase to a sensor in the tube terminal processor.
- The system triggers an alarm as soon as a defined limit is exceeded.
- DHA-1L type is highest sensitivity.