Hanna Instruments HI701 Checker HC Handheld Colorimeter for Free Chlorine sold2026 The standard hexagonal thread with

The standard hexagonal thread with high strength

High quality material: wire brushes set is made of pure brass

This model uses 2 x AAA batteries (included)

3/16" to 5/16

storage room and other places

Hanna Instruments HI701 Checker HC Handheld Colorimeter for Free Chlorine sold2026 The standard hexagonal thread withHanna Instruments HI701 Checker HC Handheld Colorimeter for Free Chlorine The HI 701 is a portable handheld meter for measuring chlorine in natural, waste, recreation, and drinking waters. The HI 701 bridges the gap between less accurate chemical test kits, and expensive professional test instrumentation. To use, zero the instrument with your water sample, then add the reagent. Place the vial into the checker, press the button and read the results