SXHF Hydroponics Nutrient / pH Monitor & Controller with Flow
GrowControl™ SXHF precision digital EC, pH, temperature and flow monitor, for stand-alone logging or GCX and MDX dosing control.
EC, pH, Temperature and Flow Monitor
GrowControl™ SXHF is a precision digital conductivity, pH, temperature and flow monitor.
The standard hydroponics conductivity probe covers 0 to 7,000 µS (0 to 7 mS), with an optional salt water probe for 0 to 80,000 µS (0 to 80 mS). A vortex flow meter tracks water use and lets dosing run only while water is moving.
Stand-alone or Networked
It works as a stand-alone logger, or connects to a GrowControl™ GCX for centralized logging, alerts and dosing control. The optional color display and three-button interface add monitoring, alerts and dosing control at the unit.
- Internal memory logs 20,000 data points per sensor, for months or years of storage.
- A real-time clock with battery backup keeps log times accurate through power outages.
- Precision digital electronics with isolated probe inputs read and record the sensor data accurately.
- Download logs to .CSV and graph them on a PC with the LX1 and free software.
Sensor Ranges
Water Temperature
-20 to 60 °CpH
0 to 14 pHConductivity
0 to 7,000 µS (0 to 3,500 ppm)Flow Rate
1 to 40 gpm (3 to 150 lpm)Flow Sensor
SX-F vortex flow meters have no moving parts and will not jam or clog with small debris and minor sludge. Water flowing through creates eddies, which an acoustic sensor picks up and converts to a flow reading. The flow sensor lets you monitor and log water use, and MDX and MPX dosers and GCX systems can dose nutrients and pH only while the meter senses water moving.

On the color display:
With the optional display: large, bright readings and functions you can run from the menus.
- High / low history
- Graphical history
- Alarm set points
- Sensor calibration
- Data logging options
Connect it
Use it with a GrowControl™ GCX, an Agrowtek doser, a PC or a PLC.
GrowControl™ GCX
Part of a complete facility control system on a GCX cultivation controller.
View GCX controllers ›LX1 USB AgrowLINK™
Connects the sensor's GrowNET™ port to a PC for data log download to .CSV, graphing, calibration, configuration and updates with free PC software.
View LX1 ›LX2 ModLINK™
Connects the GrowNET™ port to RS-422/485 for MODBUS RTU, for third-party PLCs and building automation.
View LX2 ›Setup Video:
SXH setup & operation, step by step.
Manuals and Data Sheets
Need Help Choosing Sensors?
Tell us about your tanks, reservoirs and media and we will recommend the sensors and controller.