Carbon Dioxide Analyzer Range: 0 to 100%Accuracy: +- 5% FS Unit: % Display: 7 segment 4 digit LED Output: 0- 1Vdc or 4-20mA (R < 470 ohms)Sensing Technique: Non-Dispersive infrared (NDIR)Power: 230VAC 50Hz in built battery backupEnclosure: 192x96 DIN Operating Temperature Range: 0 - 50 deg centigrade.