Professional 5-in-1 multi-function meter: pH value, electrical conductivity, total solids content, salinity, and temperature. Digital multi-function m

Features: 1. Easy to use. High accuracy. 2. Quick and easy installation and operation. 3. EC: Supports 3-point calibration with automatic detection (1413 µS, 12.88 ms, and 111.8 ms). 4. Three built-in calibration points (1413 µS/cm, 12.88 ms/cm, 111.8 ms/cm). 5. pH: 1 point (6.86), 2 points (6.86–4.00), (6.86–9.18), or 3 points (6.86–4.00–9.18) with automatic calibration solution detection. 6. Professional water level gauge with easy operation, elegant design, compact size, and ideal compatible with carrying in your pocket. 7. Automatic temperature compensation. 8. Automatic shut-off after 5 minutes of inactivity. Energy-saving and extends battery life. (Battery not included.) With backlight compatible with easier reading. Specifications: Widely used in aquariums, fish ponds, pharmaceutical research, agriculture, laboratories, aquatic ecology, quality control, and other fields. Features: Easy to use. High accuracy. Quick and easy installation and operation. EC: Supports 3-point calibration with automatic detection (1413 µS/cm, 12.88 ms/cm, and 111.8 ms/cm). 3 built-in calibration points (1413 µS/cm, 12.88 ms/cm, 111.8 ms/cm). pH: 1 point (6.86), 2 points (6.86–4.00, 6.86–9.18), or 3 points (6.86–4.00–9.18) with automatic calibration solution detection. This professional water level meter is easy to use and has a stylish design. It is small and fits easily in a pocket. It features automatic temperature compensation and automatically shuts off after 5 minutes of inactivity. Save energy. Extend battery life. (Battery not included) With backlight compatible with easier reading. Specifications: Material: ABS. EC: Measuring range: 0 to 10000 µS/cm. 10.01–19.99 ms. 20.1–400 ms/cm. Resolution: 1 µS/cm; 0.1 ms/cm. Accuracy: ±2% of reading. TDS: Measuring range: 0 to 1000 ppm. 1000 ppm to 10000 ppm. 10.1 to 200.0 pPT. Resolution: 1 ppm. 0.1 PP Accuracy: ±2% of reading Salinity: Resolution: 0.01% Accuracy: 0.01–5.00% (±0.1%) 5.10–25.00% (±1%) pH: Measuring range: 0.01–14.00 pH Resolution: 0.01 pH Accuracy: ±0.05 pH Operating environment: 0 to 60.0 °C (32.0–140 °F); RH 100% TDS: 0.4 to 1.0 Temperature range: 0.1–60.0 °C (32.0–140 °F) Temperature accuracy: ±0.5 °C Temperature resolution: 0.1 °C/°F Battery: 3 × LR44 1.5 V, 160 mAh. Waterproof rating: IP67. Display size: 33 × 24 mm. Item size: 180 × 37 mm / 7.1 × 1.5 inches. Item weight: 86 g / 3.0 ounces. Package size: 183 × 37 × 37 mm / 7.2 × 1.5 × 1.5 inches. Package weight: 90 g / 3.2 ounces. Package contents: 1 × Water quality meter, 3 × pH buffer powders