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D342 Family four‑wire duct smoke detector housings

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  • For 1 ft. (30.5cm) to 10 ft. (3 m) ducts with air velocity between 300 ft./min. to 4000 ft./min. (1.52 m/s to 20.3 m/s)
  • Easy duct tube installation through the housing cuts installation time
  • Detector test and reset without removing covers
  • Clear cover allows quick visual inspection
  • Tube filters, dust immune smoke detector, and easy disassembly for cleaning reduce maintenance time and cost
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Product Variants

D342 Family four‑wire duct smoke detector housings

Duct detector kit, 4-wire 24/220/240V

CTN D342P
Product No. 4.998.137.960

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Installation manual
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Technical bulletin (Two-Wire Compatibility)
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