The portable Hanna Combo Meter HI 9813 allows the grower to professionally measure pH, EC and PPM with a single portable meter. pH range is 0 to 14, EC range is 0 to 4 and PPM range is 0 to 1990. Meter comes with a rugged replaceable muti-probe sensor.

The HI 9813-6 has an added Cal-Check feature that can access the calibration status of the probe in seconds.