Product Name: Portable Ph Meter. Working Temperature: 0-60Cmeasurement Range: 0.00-14.0Oph Battery: 2*1.5V(Lr44)Resolution: 0.01 Phmcalibration Method: Three-Point Calibration Accuracy: 0.01 Phproduct Color: Blueproduct Size: 15.5 X 3.1 X 1.7Cm. Book Quantity: 1 Piece [Easy to Use] Remove The Protective Cap and Turn On The Ph Meter By Pressing The On/Off Key, Immerse The Electrode in The Test Solution to Be Tested, Stir Gently and Wait for The Reading to Stabilize. When Finished, Clean The Electrode with Distilled Water, Turn Off The Ph Meter and Put The Protective Cap Back On. [High Accuracy Ph Meter] The Ph Meter Uses A Sensitive Glass Bulb Electrode Sensor That Can Quickly and Clearly Read Accurate Ph Values in The Measuring Range 0-14.0. This Accurate Ph Tester Kit (0.01 Resolution) is So Accurate That It Can Accurately Test Ph to 0.02 [Automatic Calibration] The Ph Meter Has An Automatic Calibration Function Which Can Be Adjusted According to Temperature and Water Quality, and Ph Reading Can Be Obtained By Waiting A Few Seconds During The Test. Additionally, You Can Calibrate The Tester with The One-Touch Cal Button Using The Calibration Buffer Powder. [Automatic Temperature Compensation] The Product Provides Comprehensive Ph 0-14 Measurements with Temperature Compensation That Will Make The Most Accurate Result. The Temperature of The Test Liquid Can Range From 0C to 60C (32F to 140F). [Wildlife Application] Easily Slips Into Your Pocket Or Bag and Goes Anywhere. The Ph Meter is An Ideal Option for Families and Laboratory Testing of Ph Value, Which is Suitable for Testing The Ph Balance of Drinking Water, Swimming Pool, Aquarium, Ro System , Spa Or Hydroponics; Suitable for A Wide Range of Applications. ,"