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Hochiki Recess Base Adaptor (required YYA-A)


SKU: df2869772f8e Category: Brand:


The Hochiki YBN-UA is a mounting adaptor for both the ESP and CDX Range of sensors/detectors and their associated mounting bases. The YBN-UA allows a base and head combination to be flush mounted by providing a recess fixing the ceiling.

It is NOT supplied with a fixing clamp kit (YYA-1), which must be ordered separately, this secures the YBN-UA within a pre-cut hole up to a maximum ceiling thickness of 30mm. 


  • Allows base and analogue sensor or conventional detector to be flush mounted.
  • Supplied with fixing brackets.
  • Colour-matched to existing ivory and white sensor/detector ranges.
  • Sturdy construction, easy to install.
  • Suitable for a maximum ceiling thickness of 30mm.


  • Compatible Bases : All YBN Range, YBO-R/5 Range, YBO-R/6 Range, YBO-R/4 Range 
  • Drilled Hole Size : 115mm
  • Fixing Centres : 48 ~ 74mm
  • Operating Temperature : -10°C to + 50°C
  • Storage Temperature : -30°C to + 60°C
  • Maximum Humidity : 95%RH – Non Condensing (at 40°C)
  • Colour : Ivory or White
  • Material : ABS
  • Dimensions (Diameter x Height) : 140x44mm
  • Height When Fitted Flush : 7mm
  • Weight : 65g


Additional information

Weight 0.07 kg

White, Ivory