Hanna 84 µS/cm Conductivity Standard (230mL Bottle)-HI7033M marine photometer EC & Temperature Pen with

EC & Temperature Pen with Bluetooth & Edenic App

Replaceable Membranes

They're tested for quality

impact-resistant construction withstands drops

Families concerned about fluoride in municipal water

Hanna 84 µS/cm Conductivity Standard (230mL Bottle)-HI7033M marine photometer EC & Temperature Pen withHI7033M is a premium quality 84 S cm conductivity standard that is prepared against a NIST traceable potassium chloride solution. Hanna conductivity solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Hanna's line of conductivity standards have been specially formulated to have an expiration of 5 years from the date of manufacture for an