Kemio Sensors Chlorine FHR Free Chlorine 0-100 mg/l

The Kemio® Free High‑Range (FHR) Chlorine Sensors (KEM21FHR 100pk, KEM25FHR 500pk)enable fast, accurate measurement of Free Chlorine levels from 0.1 to 100 mg/L in just about 60 seconds, working seamlessly with Kemio Disinfection and Kemio Multi meters. These single-use, barcoded sensors ensure full batch traceability and consistent lab-grade readings—even in turbid, coloured, or particulate-filled samples. Their high upper limit eliminates the need for sample dilution (unlike DPD methods), simplifying workflows and reducing user error. Ideal for applications such as fresh produce wash water, industrial sterilisation, and high-disinfectant environments, the FHR sensors deliver improved accuracy, speed, and data integrity.