WiFi Air Quality Data Logger - 

160 IAQ Wi-Fi data logger is ideal for monitoring indoor air quality. Using internal sensors for temperature, humidity, CO2, and atmospheric pressure, the testo 160 IAQ accurately determines the air quality of your desired area. The logger comes with a large internal memory that stores 40,000 measurement values, as well as a battery back up to protect your data in the event of a blackout or Wi-Fi network issues. The testo 160 logger transfers these measurement values wirelessly to the testo Cloud.