Review on 🌊 Water Quality Test Kit: 3-in-1 pH EC Temperature Meter with ATC, Probe, Waterproof & Black-Light – Ideal for Aquariums, Hydroponics, Pool Spa, Lab, and Drinking Water by Troy Robinson

I am glad I chose this product. We desperately needed a new pH pen. I also needed a waterproof one because that was the death of the last pen. I wanted one from $80-$100. But could not afford this district. This one checked all the boxes for a reasonable price. It was waterproof, could be here the next day, and what made it a winner was that it came with batteries. I had the exact same one in my shopping cart for $5 more, but it didn't have batteries. An added bonus was the excellent case it came in.