The probe type pH meters are notoriously inaccurate. I can’t even recall the number of bogus pH readings we have seen here in the forum from them.
Bluelab and Apera both make great pH meters. I use an Apera and have been very happy with it. Grab one if you can. They can be a little pricey, but necessary. pH being out of line is a very common problem among newer growers. We were helping a new grower just yesterday that got himself in trouble with pH during flowering. A pH meter will help you manage pH during veg so you don’t get into trouble later in the grow.
