Hanna HI97701-11 Free & Total Chlorine CAL Check Standards CR 3200 in Standard and Deluxe builds

in Standard and Deluxe builds

Breathability: Allows for comfort during extended wear

or small gel cell battery

Special geometries

push the probe with the cross handle or footstep

Hanna HI97701-11 Free & Total Chlorine CAL Check Standards CR 3200 in Standard and Deluxe buildsThe Hanna HI97701 11 is a set of CAL Check performance verification standards for free and total chlorine photometers a fast, traceable way to confirm your meter is reading correctly without sending it to a lab. Key features NIST traceable CAL Check standards with a Certificate of Analysis for traceability Verify photometer accuracy at any time; recalibrate to the standard if out of specification Reusable, ready made standards Use with: Hanna HI977XX