SYSTEM SENSOR® D4120 DUCT SMOKE DETECTOR 1.5FT SAMPLING TUBE

Description

DST Sampling Tubes are steel pipes with a series of air inlet holes drilled along their length, designed to cover the full width of an air duct for efficient air sampling. For optimal performance, the tube should extend at least 5/8 of the duct width and be installed with holes facing the airflow. The tubes lock securely into place and can be easily removed by releasing the front or rear locking tab.