Onetest-502XP Indoor Multi-Parameter Anion Monitoring System/Formaldehyde /Voc Detection Completion

The sampler of onetest-502, 502XP series is designed with coaxial cylindrical electrode, which has the advantages of stable sampling air flow, uniform ion distribution measurement and strong anti-interference ability. It can accurately measure the positive and negative ions of small particle size existing in nature, and the high concentration of negative ions produced by the negative ion generator and its products, and show the level of air quality; At the same time, an external multi-parameter module can be selected to measure PM2.5, PM10, temperature, humidity, formaldehyde, VOC, carbon dioxide and other air quality parameters, so as to measure air quality more comprehensively.