PH/EC/TDS/TEMP Meter 4 / 3 in 1 Digital Water Quality Monitor Tester Multicolor
Red is 4in1-PH/EC/TDS/TEMP. Grey is 3in1-PH/TDS/TEMP. Ideal use to test for water, pools, aquariums, spas, hydroponics, food, wine and beer making and more. TDS: 1-19999ppm. TDS: +/-2%. Green is 3in1-PH/EC/TEMP.