HANNA HI9811-5N PH METER
HI 9811-5 is a pH/ EC/ TDS waterproof meter designed for simplicity in taking pH, µ S/ cm, ppm ( mg/ L) and temperature measurements. both the HI 9811-5 and HI 9812-5 are ideal for hydroponics, greenhouses, farming and ground water applications.
Due to the built-in temperature sensor, conductivit