This monitor is part of a series of quality monitors. The Continuous Monitor Series features microprocessor technology, providing reliable and user-friendly functionality. Designed for long-term, low-maintenance use, simply plug in the AC adapter, calibrate, and the unit is ready for continuous monitoring. Specifications: Range: pH: 0.00 ~ 14.00 pH Resolution: pH: 0.01 pH Accuracy: pH: ±0.1 pH Temperature Compensation: 0°C ~ 50°C Working Temperature: 0°C ~ 50°C Power Supply: DC 6V (Power Supply Adapter) Input Voltage: AC 220V Battery: 4x1.5V AG13/LR44 Button Cell Batteries (NOT Included) Features: Widely used to test the pH of solution or water. Uses imported IC with high cost performance. Easy pH calibration using a mini-screwdriver. Replaceable electrode probe with ATC function. Automatic temperature compensation. Large, clear LCD with backlight for easy reading and accurate testing. Note: Product design may vary slightly between batches, resulting in minor differences in appearance or color, which do not affect performance. Plug Type: EU Plug, suitable for use in countries including Germany, France, Spain, Italy, and Indonesia. Material: ABS Color: As shown Package Contents: 1 x Water Quality Analyzer Note: Other items not included. Lighting and display differences may cause slight variations in color between the image and the actual product. Measurement error allowance: +/- 1-3 cm.