Product Description: 100% Branded New And High Quality. Large LCD display makes it easy to read. 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 Automatic Calibration. ATC Function:Automatic Temperature Compensation accounts for changes in temperature automatically. Lightweight and easy to carry. Ideal for home and laboratory pH testing applications, including drinking water, swimming pools,aquariums,hydroponics etc. Feature: 1.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. 2.Automatic Calibration:No need any adjustment screwdrivers, just finish the calibration with Auto calibration button .(Not include Calibration powder/liquid) 3.ATC Function:Automatic Temperature Compensation accounts for changes in temperature automatically;Full measurement range of pH 0-14, 0.01 pH resolution. 4.Portable Design:Handheld pen style and compact carrying case makes it conveniently fits in your pocket or bag and goes anywhere. 5.Wide Application:Ideal for home and laboratory pH testing applications, including drinking water, swimming pools,aquariums,hydroponics et Specification: Type: PH Tester Measuring range: 0.00-14.00PH Accuracy: 0.2PH; 0.1PH (20C) Resolution: 0.1PH Working temperature: 0 C ~ 50 C Size:142mm(L)29mm(W)15mm(H) Display: LCD Digital Calibration: automatic calibration Weight:52g How to maintain the pH pen: If you don't use it for a long time, you can soak the pH pen electrode in pure water in about half a month, and insert it in a disposable cup Steps: 1. Remove the protective cover. 2. Turn on the switch located on the battery compartment. 3. Insert the pH meter into the liquid to be tested until the liquid is immersed in the immersion line. If possible, allow the solution to immerse slightly above the immersion line. 4. Gently stir the solution and wait for about two minutes. Read the displayed value. 5, use is complete. Clean the electrode. Turn off the switch. Put on the protective cover. Package Included: PH Tester