The Hanna pH electrode protective sleeve helps to prevent accidental damage to the glass bulb from stirrers, accidentally dropping electrodes into a beaker/vessel, and general field use. Designed to be used with Hanna 12 mm DIA glass spherical and conical tip electrodes including the 12 mm electrodes on certain HALO®, HALO2 and HI9810XX models. This sleeve also works with 12 mm DIA half cells, reference electrodes and FC300B ISE. Please make sure the probe junction is not obscured by the sleeve when taking measurements. Not for short or long term storage: Please remove the protective sleeve and use the cap originally supplied with your electrode filled with the appropriate amount of storage solution when storing.
