Hydroponic Meter PH TDS Temperature Tester Monitor Nutrient Solutions Swimming

Function: Ph; Tds; Ec; Temp. Tds Range: 0-1999ppm; 0-19.9ppt;. Model: Yy-1040 4 In 1 Hydroponic Test Pen. Ph Range: 0.00-14.00 Ph. Resolution : 0.01ph;1ppm(<1999ppm)/10ppm(>1999ppm) ; 1us/cm(<1999us/cm)/10us/cs(>1999us/cm).

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