Review on π¬ Sper Scientific High-Precision Large Display with Enhanced Resolution by Brian Inman
SPER pH meter for pH meter
I purchased this meter through Revain.com. It seems to work well and is easy to use. The only thing that would improve this product would be the addition of a bag or two of the included calibration solutions. The meter must be calibrated before use. Instead, SPER sent me a free waterproof stopwatch with my order, which I think would be useful for measuring the growth rate of my plants. But I needed a calibration solution so make sure you buy a solution if you buy a meter as a pH meter is useless without it.
- High marks for tester support and durability
- Not as thick as other options
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