Oakton AO-35634-15 Oakton pHTestr 50 Waterproof Pocket pH Tester, Premium 50 Series

About this item

• Battery: four aaa 1.5 v
• Buffer recognition: usa 4.01, 7.00, 10.01 and nist 4.01, 6.86, 9.18
• Display type: lcd
• Meter type: tester
• Ph accuracy: 0.01 ph