System Sensor Smoke Detector D4120

Key Features

• 4-Wire Photoelectric, integrated low-flow technology
• Versatile mounting options: square or rectangular configuration
• IncreasedWiring space with a newly added ¾" conduit knockout
• Plug-in sensor offers superb false alarm immunity and the latest sensor technology
• Broad ranges for operating temperature (–4°F to 158°F) and humidity (0% to 95% non-condensing)
• Patented sampling tube installs from front or back of the detector with no tools required
• Increased wiring space with a newly added ¾-inch conduit knockout
• One easy-access Test/Reset button and improved LED status
• Patented interconnect feature for multi-fan shutdown
• New high contrast terminal designations

Discover the System Sensor D4120 Smoke Detector, part of the InnovairFlex series. This 4-wire photoelectric duct smoke detector is designed with a versatile pivoting housing that can be mounted on both square and rectangular ductwork. It excels in challenging environments, with the ability to operate in airflow speeds ranging from 100 to 4,000 feet per minute, temperatures between –4°F to 158°F, and humidity levels from 0 to 95 percent. The plug-in sensor head enhances false alarm immunity and facilitates easy installation, testing, and maintenance. With an updated cover design that separates the sensor head from the low-flow feature, maintenance is streamlined for optimal performance.

Technical Specifications