The Wall Mount CO2 + VOCs Transmitter has many available features. It was created for measurement in real time of the level of ambient carbon dioxide, as well as the temperature, relative humidity, and air quality (VOC). The device has a special self-calibration and a NDIR infrared CO2 sensor located on the interior. This is where the CO2 measurement becomes more reliable and accurate. The CO2 sensor is designed to last more than a 10-year lifespan. The high sensitivity mix gases sensor detects cigarettes and VOC. Measurement of relative humidity is optional. With digital auto compensation for both temperature and humidity sensors that are combined seamlessly. It can come with or without the LCD. It will provide 2 to 3 outputs for analog for CO2, (VOC) air quality, relative humidity, and temperature.