I have used dozens of ph meters over the years. This one is the most reliable and they last for years. The only reason I had to replace the original was due to me accidentally dropping it on concrete. I had it for four years and was very happy when I come to look for another to see that they are still available. I am going to buy another to insure I have a replacement. I am very experienced and highly recommend this meter.
Verified purchase: Yes | Condition: New
very easy pen to set up and use..good value..
Verified purchase: Yes | Condition: New
Excellent product
Verified purchase: Yes | Condition: New
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