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D4240 SYSTEM SENSOR
Warranty Terms and Conditions

D4240 SYSTEM SENSOR

by SYSTEM SENSOR
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$831.45 - $831.45
$831.45
$831.45 - $831.45
$831.45
Availability :
Out of stock

Product Overview

 The D4240 photoelectric duct smoke detector is a 4-wire device with a pivoting housing that fits square or rectangular footprints and mounts to round or rectangular ductwork. It operates in airflow speeds of 100–4,000 fpm, temperatures of –4 to 158 °F, and 0–95% non-condensing humidity. Plug-in sensor heads provide false-alarm immunity and simplified installation, testing, and maintenance. InnovairFlex® housings offer ample wiring space, 3/4-inch conduit knockouts, and built-in short-circuit protection. Up to 50 detectors can be interconnected for multi-fan shutdown, with the alarm triggered only on the sensing detector.

Key Features

  • Photoelectric, integrated low-flow technology
  • Air velocity rating: 100–4,000 fpm (0.5–20.32 m/s)
  • Plug-in sensor head for improved false-alarm immunity
  • Patented sampling tube installs from front or back without tools
  • Patented interconnect for multi-fan shutdown
  • Built-in short-circuit protection
  • Field-selectable configuration settings
  • Two DPDT Form C relay contacts
  • Operates on 24V AC/DC or 240V AC
  • Compatible with existing Innovair products and remote accessories