This item is part of a current promotion only valid today! On sale now for only $199.95. This is ..
Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experime..
The HI 98129 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature me..
The GroChek Portable Meter is a versatile, water-resistant multiparameter portable met..
Hanna's Buffer solutions are made from established formulas and are standardized with a pH meter ..
pH 7 is the most frequently used pH buffer. All Hanna solution bottles come with a pH ..
Water pH is still important for plant management because it affects the solubility of fertilizers..