The product is inexpensive and essential for Saltwater Hobbits Show 1.024. It is my understanding that even tiny bubbles in the water will result in inaccurate readings. Sometimes very small bubbles that are invisible to the average person can also affect the accuracy of the readings, making them not easy to use. up to 10 tests before confirming it is giving the right result. The product is well priced and can get the job done, you just have to be patient with multiple tests in a row to make sure you're getting the right reading.
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