System Sensor 四線式 風管型煙霧偵測器 System Sensor Duct Smoke Detector D4120 維一
D4120 Data Sheet. Web this unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute,.
Web this unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute,.
Web this unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute,. Web this unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute,.
