The CHEMets® Visual Sulfide Test Kit provides simple, reliable measurement of low-level sulfide concentrations using the proven methylene blue method. Covering dual ranges of 0–1 ppm and 1–10 ppm, this visual comparator-based kit is ideal for routine water quality monitoring where precise, low-range detection is required. Each kit includes all components needed to perform 30 tests and is packaged in a durable plastic case for convenient field or laboratory use.