HI 504

pH/ORP Digital Controller with Sensor Check

HI 700

Conductivity Digital Controller with Four-ring Potentiometric Probe

HI 710

Conductivity and TDS Digital Controller with Four-ring Potentiometric Probe

HI 720

Conductivity Process Digital Controller with Inductive Probe

HI 8011

Fertigation Control System
panel mount, fertilization control by volume

HI 8021

Fertigation Control System
panel mount, fertilization control by volume, EC monitored

HI 8051

Fertigation Control System
panel mount, fertilization control by EC, by volume, ratiometric

MV 600

ORP Digital Controller with Matching Pin

MV 602

ORP Digital Controller with Matching Pin and PID Control

PH 500

pH Digital Controller with Matching Pin

PH 502

pH Digital Controller with Matching Pin and PID Control