General description This 5-in-1 PH TDS Meter is designed to measure the acidity and alkalinity of water, total dissolved solids (TDS), electrical conductivity (EC), salinity, and temperature. It is factory calibrated for immediate use, and can be recalibrated with calibration solution if significant measurement errors occur after prolonged use. Technical specifications Measurement range: PH 0.00-14.00 (accuracy 0.01 PH) TDS: 0-10000 ppm EC: 0-10000 µS/cm Temperature: 0-60℃ Other information Features a clear green backlit LCD display for easy reading in low visibility conditions Suitable for testing drinking water quality, swimming pools, aquariums, and home gardening