Digital CO2 concentration meter GCH-2018 1 unit

It is also possible to measure temperature and humidity. Equipped with data hold and Max/Min display functions that are convenient for measurement. Measurement items: CO2, temperature, humidity <CO2> Measurement range: 0 to 4000 ppm Resolution: 1 ppm Accuracy: ±40ppm (less than 1000ppm) <Temperature> Measurement range: 0 to 50°C Resolution: 0.1°C Accuracy: ±0.8℃ <Humidity> Measurement range: 10-95% Resolution: 0.1% Accuracy: ±3%rdg+1%RH (more than 70%RH) Sensors: CO2/NDIR sensor, temperature/thermistor Response time: 63% response within 2 minutes Size: 68 x 42 x 178 mm Power supply: 6 AA batteries (included for testing) or AC adapter DC9V (sold separately) Weight: Approx. 470g Accessories: 1 CO2 probe, 1 temperature probe, hard case