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  1. System Sensor D4120 Duct Smoke Detector - ADI Global

    Protect HVAC systems with this duct detector—includes sampling tubes, test/reset features, and LED indicators for quick diagnostics.

  2. System Sensor DNR Intelligent Non-Relay Duct Smoke Detector

    The Honeywell DNR duct smoke detectors can be customized to meet local codes and specifications without additional wiring and are compatible with all previous models, including …

  3. Read System Sensor’s Applications Guide for Duct Smoke Detectors (HVAG53), which provides information on detector spacing, placement, zoning, wiring, and special applications.

  4. SYSTEM SENSOR Photoelectric Duct Smoke Detector - 2GWK9|D4120 - Grainger

    Looking for SYSTEM SENSOR, 120V AC/24V AC/DC Volt, Duct Smoke Detector? Find it at Grainger.com®. With over one million products and 24/7 customer service we have supplies …

  5. System Sensor D4S 4-wire Duct Smoke Detector Sensor

    This device is essential for early fire detection in air ducts. Below, we explore the features, applications, and benefits of the D4S Duct Smoke Detector Sensor.

  6. Shop DUCTSD - Duct Smoke Detector - System Sensor - URI

    The System Sensor DUCTSD Series duct smoke detectors with a cover integrated smoke test port and flexible configurations provides efficient installation and maintenance.

  7. D2 - SYSTEM SENSOR - Duct Smoke Detector, | Anixter

    The InnovairFlex D2 duct smoke detector has signals to indicate trouble and maintenance conditions. Additionally, a cover tamper feature is incorporated to indicate a trouble condition …

  8. DUCTSD | System Sensor | Gas & Specialty Sensors - kele.com

    This duct detector unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of -4 degrees F to 158 degrees F, and a …

  9. InnovairFlex™ DUCTSD Conventional Duct Smoke Detector

    Their plug-in sensor heads and cover integrated smoke test ports enable simple installation and maintenance. DUCTSD Series detector housings provide ample wiring space, 3/4-inch conduit …

  10. HVAC Duct Smoke Detectors by Honeywell System Sensor

    Simplify HVAC system monitoring with a Honeywell duct smoke detector. This reliable duct detector features tool-free installation for versatile applications.