14% drop
Portable Air Quality Monitor Indoor CO2 Detector 5 in 1 Formaldehyde HCHO TVOC Tester LCD Temperature Humidity
$18.99$21.98(-14%)
- [5 In 1] The air quality monitor can detect the carbon dioxide, temperature, humidity, HCHO, TVOC at the same time. It can quickly measuring and obtaining a relatively stable measurement value.
Set alert threshold:
10%