10 in 1 LCD Backlight Water Quality Tester Meter for PH/ORP/EC/TEMP/SALT/S.G/TDS

Accuracy: ph: +/-0.01 ph; tds: +/-2%; temperature: 0.5℃. 2, ORP negative potential ±1999MV. ORP negative potential ±1999MV. ORP negative potential: ±1999MV. Salinity 0-20%. Salinity: 0-20%. Accuracy: ph: +/-0.01 ph; tds/ec: +/-2%; temperature: 0.5℃.

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