For use with HM Digital's PH-200 and ORP-200. Always make sure your sensor is kept in an electrode storage solution. If dry, refill the cap with the OP-STOR storage solution.
HM Digital's pH buffer solution comes in powder form, so it's lightweight, takes up very little space, is inexpensive and has an indefinite shelf life.
HM Digital's pH buffer solution comes in powder form, so it's lightweight, takes up very little space, is inexpensive and has an indefinite shelf life.
The PurTest® Pesticide test detects two of the most Common pesticides used in the US at or below the EPA maximum contaminant level (atrazine-3 ppb and simazine - 4 ppb). Easy, Fast, Accurate.
Ideal for all water purification applications, waste water regulation, aquaculture, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket or toolbox at all times!