DFF SHT 21 - Ceiling-Recessed Temperature and Humidity Sensor

SKU: 90100016
✗ UL Listed
This product has not been certified by an NRTL (UL, ETL, CSA or equivalent). Installation in USA projects may require a Field Evaluation by a recognized laboratory. Consult your local AHJ before specifying.
~ Low Voltage · SELV
This device operates on a Safety Extra Low Voltage circuit — such as the KNX 29V bus or a DALI 16V bus (NEC Class 2). When powered by an NRTL-listed power supply, many AHJs accept non-listed SELV devices. Verify with your local AHJ before specifying.
Regular price $97.31 USD
Regular price -37% $155.69 USD Sale price $97.31 USD
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The DFF is a ceiling-recessed temperature and humidity probe with a Sensirion sensing element, for discreet room climate measurement in offices, hotel rooms and residences.

It measures -20 to +80 °C (-4 to +176 °F) and 0-100 % relative humidity, and is rated IP30. Use it where wall space is limited or a wall-mounted sensor would interfere with the interior design.

Key Features

  • Sensirion temperature and humidity sensing element
  • Recessed ceiling mounting
  • Temperature -20 to +80 °C (-4 to +176 °F)
  • Relative humidity 0-100 %
  • IP30

Technical Specifications

Article no. 90100016
Measuring Sensirion (SHT21) temperature/humidity, -20 to +80 °C (-4 to 176 °F), 0-100% r.H.
Inputs / outputs & connections approx. 2 m (6.6 ft) cable
Protection rating IP30
Mounting Recessed in ceiling

(CE certified; not UL/NRTL listed — verify local code requirements before specifying in US installations)

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