Hanna HI97701-11 Free & Total Chlorine CAL Check Standards CR 3200 The Ion Science Cub is

The Ion Science Cub is the world's smallest and lightest personal photoionization detector (PID)

push the probe with the cross handle or footstep

Unless you need vented level data

in Standard and Deluxe builds

Hanna HI97701-11 Free & Total Chlorine CAL Check Standards CR 3200 The Ion Science Cub isThe 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