YSI 900 Free and Total Chlorine Colorimeter test tubes the required Geotech Variable Frequency

the required Geotech Variable Frequency Drive (VFD) will allow you to precisely adjust the Redi-Flo2® pump's discharge flow rate with a simple turn of a knob

Used with: YSI 3200

Available in durable Polyethylene and high-performance FEP materials

KCl electrolyte

hydrogen sulfide (H2S)

YSI 900 Free and Total Chlorine Colorimeter test tubes the required Geotech Variable FrequencyRugged, waterproof, single parameter colorimeter for free and total chlorine measurement in the field or lab. Includes: instrument, manual, 100 free and 100 total chlorine DPD powder packets (251414Y and 251401Y), carrying case, batteries, cleaning brush, screwdriver, (3) 10 mL cuvettes (24 mm), and (2) 5 mL cuvettes (10 mm).