Calibration Solutions, Storage Solutions, & Replacement Batteries

Pen Batteries power most pH, EC and TDS pens and come four per pack. 1.5 volt.

Genesis 2-part Electrode Cleaning Solutions. Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B cleaning solution to remove both organic and inorganic deposits from meter sensors. Use monthly or as needed to refresh your meter and keep it working optimum.

Genesis pH Calibration Kit. These solutions are used to calibrate pH meters to assure they are accurate and working properly. You should check your pH meter frequently because the properties of the meters membrane is constantly changing from normal use and aging. We recommend a two point calibration between 4.0 and 7.0 to assure that your meter is accurate across the scale. This is why the Genesis solution is available in twin packs of 4.0 and 7.0.

Genesis pH Electrode Storage Solution. Use to store your pH meter electrode between use. This solution is designed to keep your electrode sensing membrane and reference junction clean and unclogged and ready for use. Store your electrode directly in a small cup of solution or saturate a sponge in the cap of your meter for storage between use. This will prevent your permeable glass membrane from becoming dry and from mineral deposits clogging the surface. This solution is designed to equalize the osmotic pressure of the reference solution in your meter junction to keep the reference solution from seeping out and prematurely aging your meter. Should your electrode membrane dry out, soak it in solution for at least two hours before use. Never store an electrode in distilled or deionized water.

General Hydroponics pH Calibration Solution. The solution are all gardeners need for their pH meter calibration. They simply dip the probe in a small amount of the balanced solution for one minute and adjust the meter according to instructions.

General Hydroponics TDS Calibration Solution. Gardeners can get accurate readings every time with the high-quality. For use with TDS testers measuring 1500 ppm.

Milwaukee TDS Solution 1382 ppm. You will get reliable results from their Sharp Meters when they're calibrated with Sharp Solutions.

Milwaukee TDS Solution 1500 ppm. Designed to work with the Milwaukee Smart portable and Smart Continuous TDS testers that require 1500 ppm solution.

Milwaukee TDS and pH Cal-test Solutions. Easy to use. Milwaukee standard calibration buffer solutions are available in a convenient package of 20 mL sachets. Simply open sachet, insert tester or pH electrode into sachet and calibrate.

Sunleaves TDS Essential Calibration Solution. The solution is the right match for regulating the TDS Essential Digital Pen and TDS Expert Plus, ensuring accurate readings every time. Solution measures a standard conductivity of 1,000 ppm.