Humidity Sensor


The Wireless Humidity Sensor measures the surrounding humidity and temperature and wirelessly transmits the result to a Cloud Connector (Gateway) via SecureDataShot™ technology. The Cloud Connector will relay the temperature and relative humidity readings to the DT Cloud.

The Wireless Humidity Sensor uses Heartbeat Interval (HBI) to transmit a message notifying the system that it is present and operational, which can be set to 15 min, 30 min, 45 min, or 60 min. 

The Wireless Humidity Sensor has touch functionality for simple installation and use.

EU and US variants

This sensor is available in two variants, one for the EU and one for the US, due to different certifications, compliances, and wireless communication.


  • 0.05 % RH resolution, 3 %RH absolute accuracy at 25 °C / 77°F between 20 and 80 %RH
  • 0.05 °C resolution, 0.4 °C absolute accuracy at 25 °C / 77°F
  • Touch functionality


Operating conditions 
Temperature range -40 to 85 °C / -40 to 185 °F
Recommended temperature range 0 to 50 °C / 32 to 122 °F, non condensing
Humidity at 25 °C  / 77 °F 0 to 100% relative humidity
Wireless communication 
 EU 868 MHz SRD/ISM band, SecureDataShot
 US 915 MHz ISM band, SecureDataShot
Certifications and compliance 
EU CE, WEEE, Batteries directive
US Certified to FCC and ISED regulations
FCC ID: 2ATFX-100541
IC: 25087-100541
Recommended storage conditions Cool and dry, near normal room temperature
Construction Sealed, Impact modified acrylic film
Size and weight 19 x 19 x 2.8 mm, 2.0 g
Lifetime Up to 10 years in the default configuration and standard environment
Wireless Range  
Indoor 25 m | 82 ft
40 m | 131 ft w/Cloud Connector (2nd Gen)
Indoor with Extender 100 m | 328 ft
150 m | 492 ft w/Cloud Connector (2nd Gen)
Product numbers and datasheets
EU 102081
US/Canada 102087
Datasheet Datasheet Wireless Humidity Sensor
The datasheet for variants is no longer available for purchase Datasheet Wireless Humidity Sensor EU 101851
Datasheet Wireless Humidity Sensor US QR 102087

See the datasheet for detailed specifications.