HI 21

Industrial Grade pH Digital Controllers Wall Mounted with Matching Pin

HI 22

Industrial Grade ORP Digital Controllers Wall Mounted with Matching Pin

HI 23

Industrial Grade Digital Controllers Wall Mounted with Four-ring Potentiometric Probe

HI 24

Industrial Grade EC/TDS Digital Controllers Wall Mounted with Four-ring Potentiometric Probe

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 8002

Fertigation Control System
wall mount, fertilization control by EC

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 8022

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

HI 8051

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

HI 8510

pH Analog Indicator with Self Diagnostic Test

HI 8710

pH Analog Controller with Self-Diagnostic Test

HI 8720

ORP Analog Controller with Self-Diagnostic Test

HI 943500A

Conductivity Analog Controller with Direct Input from Potentiometric Probe
0.1 mS/cm resolution

HI 943500B

Conductivity Analog Controller with Direct Input from Potentiometric Probe
0.01 mS/cm resolution

HI 943500C

Conductivity Analog Controller with Direct Input from Potentiometric Probe
1 µS/cm resolution

HI 943500D

Conductivity Analog Controller with Direct Input from Potentiometric Probe
0.1 µS/cm resolution

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