I use an apera pH 60 model and I really like it it has replacement probs and it takes normal AAA batteries it isn't inexpensive but it isn't expensive. So far I'm pleased. Got it off the ol Amazon if your interested in looking at it.
I use an apera pH 60 model and I really like it it has replacement probs and it takes normal AAA batteries it isn't inexpensive but it isn't expensive. So far I'm pleased. Got it off the ol Amazon if your interested in looking at it.