PH VALUE - just move the switch to the right and after 1 minute you know the PH value of your soil. PH Range: 3.5-8PH ( 3.5-7 Acid, 7-8 Alkaline). PH readings range : 8 ALKALIN-3.5A CIDIC. Step 3 : Adjust the position of the probe until the pointer on the dial swing slightly.
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