FNIRSI®SFD-02 4-IN-1 Indoor Air Quality Monitor
Formaldehyde Detector, HCHO, TVOC, Temperature Tester
The FNIRSI SFD-02 is a smart indoor air quality tester, designed to monitor formaldehyde (HCHO) and TVOC levels in real time. Ideal for homes and offices, it provides accurate, easy-to-read data and intelligent features to help keep your environment safe and healthy.












