CO2 METER, + Humidity, Temperature.
Model: GCH-2018
• CO2 range : 0 to 4,000 ppm.
• CO2 sensor : NDIR, long term reliability.
• CO2 with alarm setting.
• Function : CO2 (Carbon dioxide), Humidity, Dew point, Temperature.
• Data hold, Record (Max., Min.).
• RS232/USB computer interface.
