5 in 1 Water Quality Tester Digital Tds/ec/ph/salinity/temperature Meter for Poo
A 5-in-1 Water Quality Tester from Mainland China, model number 9909, with a digital display featuring backlight. Accuracy: ±0.05pH. Resolution: 0.01pH. Accuracy: ±2% of reading. Accuracy: 0.01-5.00% (±0.1%) 5.10-25.00% (±1%).