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Measures 5.6 to 7.4 PH This test kit is excellent value for money as it will last one year at the rate of three tests the week.
£3.95
The BlueLab PH Meter is used to accurately measure the ph value of a solution.
Measures 4 to 8.5 PH This kit is excellent value for money as it will last one year at the rate of three tests for a week.
