Feature:1. It can perform pH and ORP measurements at the same time, and can display temperature readings on the LCD, with automatic temperature compensation.2. With waterproof design, waterproof grade is IP65, large screen is easy to read data, doubleline subtitle design structure is ingenious, scientific and reasonable.3. With replaceable pH electrode design, even if the pH electrode is damaged, you do not need to replace the instrument.4. The portable PH test pen is made of ABS material, The measurement is fast, efficient and accurate, which can fully meet your measurement needs.5. Widely used in industry and agriculture, environmental protection, breeding, food manufacturing, water purification, swimming pools, etc.Specification:Item Type: Acidity MeterModel: PH-099Material: ABSBattery: 4 x 1.5V LR44 (Battery Not Included )Application: Industry and agriculture, environmental protection, breeding, food manufacturing, water purification, swimming pools, etc.Measuring RangePH0.00~14.00pHORP -1999~1999mVTemp0~50ResolutionPH0.01pHORP1mVTemp0.1AccuracyPH0.1pHORP5mVTemp1Automatic Temperature Compensation0~50.Package List:1 x PH Meter (Battery Not Included )1 x Screwdriver1 x Manual1 x Plastic BoxNote:1. When testing, please put the acidity meter vertically to ensure the accuracy of the test value2. When testing, the liquid just doesn't pass the probe3. When placing the battery, please insert the battery correctly according to the instructions in the instructions