Precise and Reliable】pH meter: full PH measurement range 0-14, reliable and fast readings. 3-in-1 TDS Gauge: measurement range 0-9990PPM, 0-9990µm/cm; accuracy ±2%, 0.1-186°F, 32-186°F; Note: this scale cannot test marine water. 【WIDELY USE】commonly used to test pH balance, quality and rigidity of drinking water, household water, pool water, fish tub, spa, water agriculture and so on (if there is any problem about this product, please contact us)
