Great for all home and laboratory TDS & pH testing applications including aquariums, swimming pools
pH meter: Full measurement range of pH 0 - 14, reliable and quick readings
3-in-1 TDS meter: Measurement Range 0-9990ppm, 0-9990µs/cm; Accuracy ± 2%, 0.1- 80.0°C, 32.0-176.0°F.
Comes with protective case; Lightweight, handheld design for portability and convenience
Due to recently reviews about 1413 solution, please note that TDS Meter had been calibrated by 1413 solution in advance; You can use it directly and it could last for 1 year without second calibration; So 1413 calibraiton solution is not included