The additional Netatmo indoor module measures temperature, relative humidity and carbon dioxide (CO₂) concentration in an additional room, such as a bedroom, office or living room. It connects wirelessly to a compatible 2nd-generation Netatmo Original Weather Station and does not operate independently. Measurements and their history, as well as alerts, are available via the Netatmo Weather app.
- Type: Additional indoor module
- Measurements: Temperature, relative humidity and CO₂ concentration
- Temperature measurement range: 0–50 °C
- Humidity measurement range: 0–100%
- Use: Indoor spaces
- Display: None
- Connectivity: Wi-Fi 802.11g, 802.11b, IEEE 802.11n
- Power supply: 4 × 1.5 V AAA batteries
- Compatibility: 2nd-generation Netatmo Original Weather Station
- Maximum number of modules per station: Up to 3
- Height: 155 mm
- Width: 45 mm
- Depth: 45 mm
- Weight: 173 g