System Sensor InnovairFlex D4120 and D4S
System Sensor of St. Charles, Ill., releases the InnovairFlex D4120 four-wire photoelectric duct smoke detector, which features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork.
The unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of –4° F to 158 °F, and a humidity range of 0 to 95% (noncondensing), according to the company.
For applications that require supply and return detection, InnovairFlex has a 2-to-1 sensor to power board capability using the D4120 and the company’s D4S sensor. This capability eliminates the need to run power to a second power board for these applications, reducing installation time, maintenance and testing costs by enabling the testing of two sensors from a single location, according to the company.
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