1.1.3 in 1 Digital TDS meter can provide accurate readings of TDS EC and temperature. Automatic temperature compensation during measurement ensures accurate readings across different water temperatures. Automatic shutdown after a short period (3 to 5 minutes) saves power and extends battery life. Four measurement modes are available for TDS and EC readings; press Shift to switch between modes. Mode memory function preserves the last startup mode, so the device returns to the same mode on the next use. Key benefits and why you need this Allinone measurement: monitors TDS, EC, and temperature with a single instrument, reducing the need for multiple meters. Reliable performance: ATC provides consistent readings in varying temperatures, improving decision making for water quality. Low maintenance use: automatic shutdown conserves battery life for longer intervals between charges. Flexible operation: four modes cover different measurement scenarios; quick mode switching enhances workflow. Convenient startup workflow: mode memory saves time by returning to your preferred setting automatically. Use scenarios Home water quality assessment: test tap or filtered water to verify TDS/EC levels for taste, reuse, or filtration effectiveness, while tracking temperature for context. Aquaculture and hydroponics: monitor nutrient solution or aquarium water to maintain safe TDS/EC levels and balance temperature for plants or aquatic life. Smallscale beverage or spa maintenance: check solution concentrations and temperature in simple beverage preparation, spa, or pool maintenance to ensure proper water characteristics.