The Bosch Group D273 Smoke Detector
Item No.
Mfg Part No.
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Product Information for The Bosch Group D273 Smoke Detector

Highlights for The Bosch Group D273 Smoke Detector

Marketing Information

The D273 Series Detector models use an infrared (IR) LED light source and a silicon photodiode to measure light in a chamber. A fine screen covers the chamber to deter insect and reduce dust accumulation and nuisance alarms.


  • Status Indicators: LED
  • General Information

  • Product Type: Smoke Detector
  • Manufacturer Part Number: D273
  • Manufacturer Website Address:
  • Manufacturer: The Bosch Group
  • Product Model: D273
  • Product Name: D273 TH Smoke Detector
  • Brand Name: Bosch
  • Miscellaneous

    Additional Information

  • Four-wire smoke detector
  • Designed for commercial or residential use
  • Removable terminal block to simplify wiring connections
  • Cable connection point for voltmeter sensitivity test
  • Trim Plate TP280 for retrofit and remodeling purposes
  • Physical Characteristics

  • Dimensions: 5" Height
  • Power Description

  • Input Voltage Range: 10 V DC to 30 V DC
  • Technical Information

  • Sensing Technology: Photoelectric
  • Warranty