Review on 🌊 Accurate Water Quality Testing with KETOTEK 2-in-1 PH and TDS Test Meter: Hydroponics, Aquariums, Drinking Water, RO System, Fishponds, and Pools by Jake Powell

disposable garbage, best for single use. I've been a Highpro farmer for 10 years and I've never seen a worse pH meter because I knew what's what. asserts itself consistently. to 9.18 with solution 7.0. Second, like many inexpensive testers, there is usually a tiny screw on the back for manual adjustment of the clock manual adjustment screw. Good. it has a hole but no adjusting screw (point YOU screwed!). If you're looking for cheap, make sure it's not the Ketotek brand. On the other hand, the TDS meter is great. It worked alongside my Eco branded TDS, solid and reliable and at a MUCH lower price. In summary, I will never buy this kit (maybe a TDS meter) from this company ever again. .(find one with manual screw adjustment (just in case)