... healthy and safe water with this excellent Automatic Temperature Compensation PH meter, Portable pH meter KL012Key Features:Large-screen, high resolution and accuracy, reading ... range of high precision, small size, the use of convenient, cheap and good products.Specification:Meausring range: 0.00-14.00pHAccuracy ... 68 x 25mmCalibration: Manual 2 point, through trimmer KL012 Portable pH meter