CDM 901 is a micro-controller based instrument which shows real time CO2 values. The monitor is based on improved technology, which does not require a pump. An in- built data-logger can be used to record the values and a software is provided to download the data to MS Excel for trend analysis. Typical applications include continuous indoor/outdoor air quality monitoring, research, ventilation control, mushroom farming, green-house assessment, warehouse monitoring, etc.

https://instrumentkart.com/product-detail/co2-analyzer-cdm-901