The URBAN WiFi air quality monitor measures ppm CO2, humidity and temperature. The humidity meter, thermometer and ppm CO2 meter are compatible with smartphones and offer manual and automatic calibration. Equipped with an NDIR sensor for precise measurements. Technical specifications: Dimensions: 70x84x35 mm, Detectable ppm: 400-5000 ppm, CO2 detection accuracy: 50 ppm, Detectable temperature: 0-50 °C, Temperature measurement accuracy: 1 °C, Detectable humidity: 0-99% RH, Humidity measurement accuracy: 5%, USB-C power supply, Battery capacity 1200 mAh.