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Bosch D263

Bosch D263 Smoke Detector - 2 Wire photoelectric smoke detector
Temporarily out of stock; available to order
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We want to make sure you are completely satisfied with your purchase. Customers must return their product within 30 days of shipment to receive a full credit less a 15% restocking fee. Returns must be presented in new condition with all of the original packaging.

The D263 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 insects and to reduce dust accumulation and nuisance alarms. During a fire, smoke particles reflect light onto the photodiode. When the photodiode measurements exceed the alarm threshold, the detector signals an alarm condition. After the alarm condition clears, interrupt power at the control panel to reset the detector.

General Information

  • Product Type: Smoke Detector
  • Brand Name: Bosch
  • Manufacturer: The Bosch Group
  • Product Model: D263
  • Product Name: D263 Smoke Detector

Technical Information

  • Sensing Technology: Photoelectric

Physical Characteristics

  • Height: 2"


  • Additional Information:
    • Two Wire
    • Designed for commercial or residential use
    • Removable terminal block to simplify wiring connections
    • Cable connection point for voltmeter sensitivity test
    • Trim Plate for retrofit and remodeling purposes


  • Status Indicators:
    • LED
    • Alarm

Power Description

  • Input Voltage Range: 12 V DC to 24 V DC

Full specifications (PDF)


The Bosch D263 is also known as BOS-D263 .