Features: 1Wide application widely used in industry agriculture food medicine scientific research environmental protection and other fields. 2With ATC function it solves the problem of inaccurate measurement caused by liquid temperature changes and the reading is easy to obtain reliable and stable readings. 34 in 1 PH tester you can accurately measure PH TDS EC and temperature values get a clear understanding of water quality and ensure the health of your family. 4The screen dual display can display TDS value + temperature conductivity + temperature PH + temperature at the same time. 5Small and lightweight easy to carry simple to operate and practical. With high sensitive probe you can quickly read the results. Specification: Item Type: Water Quality TesterMaterial: Plastic + ElectronColor: As shown in the pictureSize: Approx. 18.5x3.7x3.7cm / 7.3x1.5x1.5inWeight: Approx.155g/5.5ozBattery: 3 x LR44 button battery(Built-in)Battery Capacity: 160mAhTemperature Measurement Range: 0-60 resolution 0.01pH Measurement Range: 0-14TDS Measurement Range: 1-9999ppmEC Measuring Range: 1-19999us/cmAutomatic Shutdown: 5 minutes Package List: 1 x Water Quality Tester1 x English Manual Note: 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.