Formaldehyde self-test box 1 box

▸ Product Model: Z-0434 Formaldehyde Detection Box
▸ Detection range: 0.01-0.6mg/m³
▸ Reaction time: 8h sampling + 15 minutes of color development
▸ Component Composition: Colorimetric Chart ×1 | Phenol Reagent ×3 | Absorption Cartridge×2
▸ Reference standard: national standard phenol reagent spectrophotometry