PH ESSENTIALS METER DIGITAL TESTER FOR NUTRIENT SOLUTIONS HYDROPONIC
Convenient & easy to use, it is automatically temperature compensated. ALL IV - PH - AB - KW - PA - DD9 - KA27-28 = £10. Clean with water after each use. Up to 20kgs. BT = £15 - ROI = £30. I.O.W = £10.