Description: Large & clear LCD display with bright backlight and ℃/℉ switch, easy to read and accurately testing. Electrode probe can be replaced - Replaceable BNC pH sensor probe,easy to use it. Data hold, Max & Min measurement function. Widely used for home and laboratory uses; water, pools, aquariums, spas, hydroponics, food, wine and beer making and more. Highly accurate for measuring range of 0-14 PH, measure & display pH result simultaneously with LCD display, reliable and quick reading. LCD Backlight Display: Large LCD display screen show the testing results, easy to read. LCD backlight display for operation under dark environment. Specifications: Model: AS218. Material: plastic. Size: 159*66*31mm. Color: show as pictures. Measuring Range: 0.00~14.00pH. The Measured Solution Temperature: 5°C~60°C. Solution Temperature Compensation Range: 0°C~60°C. Battery Type: 9V battery(NOT Included). Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Include: 1 * AS218 PH Meter. 1 * Composite Electrode. 1 * User Manual.