https://www.growell.co.uk/manual-ph-tester.html3681Manual pH Testerhttps://www.growell.co.uk/media/catalog/product/p/h/ph-test-indicator_web.jpg5.955.95GBPInStock/Nutrients & Boosters/Grow Room Tools/Nutrients & Boosters/Nutrient & pH Management/Grow Room Tools/Measuring Tools/Pests & Plant Health/Pests & Plant Health/Plant Health/Gardening Tools/Gardening Tools/Measuring Equipment<div data-content-type="html" data-appearance="default" data-element="main"> </div> <div data-content-type="html" data-appearance="default" data-element="main"><p>It is possible to test the pH of your nutrient solution without using electronic meters. We offer a cheap and simple to use manual pH tester.</p></div>64.7rating:92excluded_from_sitemap:Yes