High accuracy analyzer / monitor of CO2. Specially designed for permanent operation in greenhouses. The sensor isn’t consumable type. Specifically the device has double wavelength (NDIR) infrared sensor. Features integrated sampling pump and LCD display for the reading of measurements. It has linear output 0 - 20mA for connection to a data Logger. It provides automatic compensation of the measurements. Its case has IP 54 protection degree. It has two adjustable alarm limits with LEDs.