Look Hanna Instruments HI 9813-6N Waterproof pH/EC/TDS Temperature Meter Clean and Calibration Check for Growers, 0 to 50 Degree C, 9V Battery

The HI 9813-6N waterproof multiparameter meter measures pH, electroconductivity (EC), and total dissolved solids (TDS), making it suitable for designed specifically for agricultural applications such as hydroponics, greenhouses, farming and nurseries. The HI 9813-6N comes with a HI 1285-6 combination probe with DIN connector and 1 m/3.3 ft. cable, a starter set of calibrati