System Sensor D4120 Duct Smoke Detector, 120V AC/24V AC/DC Volt, Sound Alert, Duct Mount, 5 in Overall Ht

The SYSTEM SENSOR - D4120 is a Photoelectric, Duct Smoke Detector that falls under the category of Carbon Monoxide and Smoke Detectors. This device is engineered to detect smoke within air handling systems in commercial and industrial facilities. It employs photoelectric technology to sense changes in light caused by smoke particles, activating an alarm when levels surpass a certain threshold. The detector plays a vital role in early fire detection and prevention. Key Features of the SYSTEM SENSOR - D4120 Photoelectric, Duct Smoke Detector: • Type: Universal design suitable for various applications. • Air Velocity (FPM): Operates effectively between 100 to 4000 feet per minute air velocity range. • Alarm State (mA): Maximum current draw during alarm state ranges from 35mA RMS @120V AC to 130mA RMS @24V AC depending on power source. • Ambient Temp. Limits (F): Can function efficiently between temperatures ranging from -4 Degrees to 158 Degrees F. • Voltage: Compatible with multiple voltage sources including 24V DC/AC and 120V AC for versatile use. • Mount Type: Can be mounted on both round or rectangular ductwork providing flexibility during installation .