Technical indicators: Measuring range I: humidity 30-90% RH II: the concentration of formaldehyde gas 0-4.00 parts per million (PPM) or 0-4.00 mg/m3 Resolution: I: humidity testing 1% RH II: the formaldehyde gas concentration of 0.01 PPM, 0.01 mg/m3 Response time: 20 ° C for 30 seconds Accuracy: I: humidity plus or minus 3% II: the formaldehyde gas plus or minus 5% Sampling method: dispersive Display: four liquid crystal display (LCD)
Technical indicators: Measuring range I: humidity 30-90% RH II: the concentration of formaldehyde gas 0-4.00 parts per million (PPM) or 0-4.00 mg/m3 Resolution: I: humidity testing 1% RH
