Description:  This PH Meter is the perfect device for determining the acidity or alkalinity of liquids.It's incredibly easy to use-just immerse the electrode and the readings are automatically displayed.  With 0.01pH Resolution, you may get higher accuracy than other pH meters.The electrode is designed with more durability in order to offer a longer product lifespan.  Applied range: the production and drinking of purified water, Electroplating liquid, Boiler water, Water in fish tank, Water of swimming pools, Photograph flushing fluid, Well water, Deep phreatic water, Laboratory, Aquaculture, Food processing, etc.     Features:  Fast and Accurate Readings: Just turn it on, dip in liquid and read display, no need to work with color charts or test strips; Large LCD display makes it easy to read.  Automatic Calibration: No need any adjustent screwdrivers, just finish the calibration with Auto calibration butt.  ATC Function: Automatic Temperature Compensation accounts for changes in temperature automatically; Full measurement range of pH 0-14, 0.01 pH resolution.  Portable Design: Handheld pen style and compact carrying case makes it conveniently fits in your pocket or bag and goes anywhere.  Wide Application: Ideal for home and laboratory pH testing applications, including drinking water, swimming pools, aquariums, hydroponics etc.     Specification:  Display: LCD Digital;  Measure Range: 0.00-14.00pH;  Resolution: 0.01pH;  Accuracy: ±0.01pH;  Power Supply: 2 * 1.5V LR44 Batteries(Keep using more than 500 hours);  Operating Temperature: 0℃~60℃;  Calibration: automatic calibration;  Dimensions: 155 x 31 x 14.5 mm;  Weight: 100g.     Package Included:  1 x Digital PH Meter;  1 x User Manual;  1 x 250ml pH Buffer Powder(PH6.86@25℃);  1 x 250ml pH Buffer Powder(PH4.01@25℃);  1 x 250ml pH Buffer Powder(PH9.18@25℃).