CO2 Controller Digital Carbon Dioxide Monitor with 0-9999ppm 1ppm RH Range 0-99%
CO2 Display Resolution: 1ppm. CO2 Accuracy: ±50ppm/Reading ±5%. CO2 Temp Dependence: ±0.1% of reading per°C or ±2ppm per°C,whichever is greater,referenced to 25°c. RH Range: 0-99%. RH Accuracy: ± 3%. RH Resolution: 0.1%.