The popular GS-CD-T5005 Carbon Dioxide Sensor / Transmitter has recently been superceded by the latest GS-CD-T51 series.
These are available in either scaled DC voltage or 4-20mA output versions (thermistor output for temperature measurement is also available on request).
The EL variant also comes with multi-coloured LED indicators to give a visual reference of the CO2 levels. This is available in either dual DC Voltage or 4-20mA output (CO2 + Temperature).
For more information, please click here