Additional Module for Netatmo Weather Station NIM01-WW Use the additional modules to monitor air quality throughout your home. Whether in your bedroom or your children's room, in the living room or kitchen, thanks to the Netatmo Weather Station & its additional modules, you can now monitor the air quality throughout the whole house. Place an additional module in each room of the house & measure the temperature, the CO2 & the humidity in the room. You can then access all this information easily from the iPhone or Android app or the Web App, while in the house or from the other side of the world. Add up to 3 additional modules to your Netatmo Weather Station. The additional modules are sold by the unit & work with the Netatmo Weather Station, sold separately. Size Additional Module: 45x 45x 105 mm / 1.8x 1.8x 4.1 inches Mechanics & Design Single piece of durable aluminum shell. Sensors & measurements Temperature: Ranges from: 0°C to 50°C / 32°F to 112°F Accuracy: ± 0.3°C / ± 0.54°F Humidity: Ranges from: 0 to 100% Accuracy: -0, 03 CO2 meter: Ranges from: 0 to 5000 ppm Accuracy: ± 50 ppm or ± 5% Units US system: °F Metric system: °C Wireless specifications Wireless connection between module & station: Long range 100m. Power & batteries Additional indoor module powered by 4 AAA batteries. Good to know: You have the option of connecting up to 3 Additional Modules to a Station. Humidity-saturated rooms like a sauna could damage your module. The Additional Modules are sold individually & work with the Weather Station sold separately. Regulatory statements FCC & CE Librairies we use Pack content One Additional Module AAA batteries included App compatibility i OS 4 or higher Android 4.0 or higher WP 8.0 or higher