System Sensor D2 Smoke Detector 30067439-890 the CTC-1611 is the official

the CTC-1611 is the official updated version for both the CTE-5001-10 and CTC-1001-10

Featuring a changeover (CO) configuration

minimizing the impact of lead wire resistance and facilitating long-distance wiring runs in commercial installations

6kW heater systems to maintain equipment listing

this element is rated for both R404A and R507A refrigerants

System Sensor D2 Smoke Detector 30067439-890 the CTC-1611 is the officialFor contractors and fire safety professionals, the System Sensor D2 remains a standard for reliable detection within air handling systems. This 2 Wire InnovairFlex Photoelectric Low Flow Duct Smoke Detector is engineered to operate across a broad air duct velocity range of 100 to 4,000 feet per minute, making it suitable for both high speed supply ducts and low velocity return air applications. Built on a modular platform, the InnovairFlex D2 features