System Sensor - D4S - 4-Wire Photoelectric Sensor Only Duct Smoke Detector Component

InnovairFlex™ duct smoke detectors combine an impressive collection of innovations to greatly simplify HVAC system monitoring. One unit can accommodate multiple installation footprints to overcome mounting constraints. Tool-free, plug-in sampling tubes speed and simplify installation. Broad temperature and humidity ranges accommodate exposure to environmental extremes. Easily visible status indications, a readily accessible test feature, and remote test station accessories simplify testing and maintenance. With its unmatched flexibility, InnovairFlex can adjust to fit any application

• 4-Wire Photoelectric, integrated low-flow technology
• Air velocity rating from 100 ft/min to 4,000 ft/min (0.5 m/s to 20.32 m/sec)
• Versatile mounting options: square or rectangular configuration
• Plug-in sensor and latest sensor technology help prevent false alarms
• 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 an additional 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
• Built-in short circuit protection from operator wiring errors
• Field-selectable settings for configuring the detector
• Two DPDT Form-C relay contacts
• 24 VAC/DC or 120 VAC
• Backward compatibility with existing Innovair products, including remote accessories