Product Description body { font-family: Arial, sans-serif; } h2 { color: #333; } ul { list-style-type: none; padding: 0; } li { margin: 10px 0; } .features, .specifications, .package-list, .precautions { margin-bottom: 30px; } Features: Measures a wide range of parameters: PH, TDS, EC, ORP, specific gravity (S.G) of seawater, and temperature. Detects salinity of both edible salt and seawater with ranges of 0.00-25.00% and 10.1-200.0ppt respectively. IP67 certified, ensuring excellent protection against dust and short-term immersion in water. Portable design makes it easy to carry and test water quality in various settings such as tap water, RO systems, aquariums, seawater, and pools. Automatic power-off feature conserves battery life by shutting down after 5 minutes of inactivity. Features a clear LCD display showcasing 4-digit readings with corresponding units for user convenience. Specifications: Model: C-600A (with backlight) / C-600 (optional) EC Measurement: Range: 0-10000µS/cm, 10.01-19.99mS, 20.1-400mS/cm Resolution: 1µS/cm, 0.1mS/cm Accuracy: ±2% of reading TDS Measurement: Range: 0-1000ppm, 1000-10000ppm, 10.1-200.0ppt Resolution: 1ppm, 0.1ppt Accuracy: ±2% of reading Salinity Measurement: Range: 0.00-25.00% Resolution: 0.01% Accuracy: 0.01-5.00% (±0.1%), 5.10-25.00% (±1%) pH Measurement: Range: 0.01-14.00pH Resolution: 0.01pH Accuracy: ±0.05pH ORP Measurement: Range: 0 to ±999mV S.G Measurement: Range: 1.000 to 1.222 Temperature: Range: 0.1-60.0°C / 32.0-140°F Accuracy: ±0.5°C Resolution: 0.1°C / °F Power Source: 3x1.5 LR44 batteries (not included) Display Size: 33 x 24 mm Size: 183 x 37 x 37 mm (7.2 x 1.5 x 1.5 in) Weight: 105g (3.2 oz) Package List: 1 x 7-in-1 Meter 1 x Manual in English Precautions: The item is shipped without a retail box. Always clean the electrode after each use. If pH calibration fails, it may indicate a broken electrode.