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Hydrobuilder-Agrowtek GrowControl SXHM Hydroponics Sensor Kit W/Temp, pH, & EC Probes
- Agrowtek HX8 GrowNET 8-Port Hub
- Agrowtek GrowControl SXHM Hydroponics Sensor Kit With Temp, pH, EC & ORP Probes
Built On A Decade Of Proven Technology & Components With New, Enhanced Capabilities To Meet The Growing Demand For Highly Reliable Autonomous Monitoring Applications
GrowControl SXHM precision digital hydroponics sensor transmitter, data logger and mini-controller for temperature, pH, conductivity, plus oxidation reduction potential (Redox, ORP) or dissolved oxygen (DO.) Color display and 3-button interface make this unit capable of operating stand-alone for sensor monitoring, alerts, and more. Precision digital electronics with isolated probe inputs accurately read and record sensor data. Internal memory logs 21,600 data points per sensor for months or years of storage. Accurate real-time-clock with battery backup keeps log time accurate during power outages.
The SXHM hydro sensor continuously monitors the sensor probes and compares the readings to “target” set points for pH, conductivity (EC) and ORP (optional.)
If you are looking to not only monitor your hydroponic set up, but dose on the fly as well, check out the MDX system from Agrowtek. This includes the SXHM monitor, as well as several pump configurations for an easy, autonomous dosing system.
Included With The Mini Dosing System:
- GrowControl SXHM Controller
- pH, EC, and temperature sensors
- OPTIONAL: ORP or DO Sensors
The SXHM can be paired with the GrowControl GCX Cultivation Control System for ultimate control of your growing operation. When paired with the GrowControl GCX Controller, you not only gain the ability to control & monitor all aspects of your facility's climate and hydroponics systems, you gain the option to run your SXHM doser system from the comfort of your home with remote access capabilities. Potential problems and issues are sent to you at an instant via text or email too, so you never have to worry!
If you're looking to use an onsite PC, Agrowtek also offers an easy solution for configuration, firmware updates and data logging, and more using the Agrowtek LX1 AgrowLink. When using the LX1, you can also connect the SXHM to the HX8 8-port hub, which allows the control of multiple dosers, sensors, & relays directly via your onsite PC.
To make sure you set your system up how you truly like and not just how you can get it, Agrowtek systems use standard MODBUS protocalls and can be controlled by MODBUS devises using Agrowtek's LX2 ModLink.
The GrowControl SXHM Controller
- 3-button/LCD display interface allows easy monitoring of sensor values.
- High / Low History
- Graphing
- Main Menu
- Alarm set points with Buzzer
- Manual pump priming
- Back-light shut-off timer
- Simple menu driven setup for configuring pump recipes, system settings, sensor calibration and more.
- The main screen displays the realtime sensor readings from the attached sensors.
Agrowtek Sensors & Probes
Temperature Probe
- -20 to 60°C
- 3 ft
- Tinned Lead Connection
- Included with SXHM Monitor
Stainless steel probe, 1/4" diameter x 3" with 3ft lead. Made in USA

pH Probe
- 0-14 pH
- 3 ft
- BNC Connection
- Included with SXHM Monitor
High quality pH sensor probe. Made in USA.

Conductivity (EC) Probe
- 0- 5000 uS
- 3 ft
- Tinned Lead Connection
- Included with SXHM Monitor
High quality electrical conductivity sensor probe. Made in USA.

Oxidation Reduction Potential (ORP) Probe
- -1000 to +1000 mV
- 3 ft
- BNC Connection
- Optional Upgrade for SXHM System (can't be used with DO Probe on SXHM system)
High quality ORP (Redox) sensor probe. Made in USA

Dissolved Oxygen (DO) Probe
- 0 - 20 mg/L
- 3 ft
- BNC Connection
- Optional Upgrade for SXHM System (can't be used with ORP Probe on SXHM system)
High quality galvanic DO sensor probe. Made in USA.

Sensor Set Up & Usage
Connecting Your Sensor Probes To The SXHM Controller
pH and ORP or DO sensors are equipped with “BNC” style connectors; push on and then turn to lock in place.
Temperature and EC probes have a screw terminal block. Make the connections according to the label on the transmitter. The terminal block may be removed for easier wire installation or for service.

Sensors Require Continuous Contact
SXHM monitors require the sensors to be continuously in contact with the water in order to properly manage the dosing pumps. Probe can be located in the reservoir tank, or may be installed inline with a continuously recirculating water flow.
pH & ORP probes must remain wet to avoid damage. Do not allow probe tips to dry!
** Manifold shown sold separately. **

Sensor Specifications
Specification | Measurement |
---|---|
Power | 24Vdc, 5W |
Max Cable Distance | 1000ft |
Temperature Range | -20 - 60°C |
Temperature Accuracy | ±2°C, 0.01° resolution |
pH Range | 0-14pH |
pH Accuracy | ±0.02pH, 0.01pH resolution |
Conductivity Range | 0 - 5000 uS (0-2500ppm) |
Conductivity Accuracy | ±20uS, 2uS resolution |
ORP (DO) Range | -1000 - +1000mV (0-20mg/L) |
ORP (DO) Accuracy | ±10mV, 1mV resolution |
4-20mA Output Resolution | 12 bit , 0.005mA |
Features
Brand | Agrowtek |
---|---|
SKU | SXHMK |
Weight (lb.) | 1 |
Height (in.) | 2 |
Prop 65 | No |
Lead Time | This product ships in 4-6 Weeks |
Length (in.) | 6 |
Width (in.) | 4 |
Warranty | 1 Year |
Simple Wrapper | No |
UL Listed | No |
Simplify Your Grow Set Up & Cable Management While Taking Advantage of AgrowTek's Immense Customization Capabilities
The HX8 GrowNET hub expands any GrowNET master port into 8 more ports! Fully buffered hub provides power to all 8 ports using the DC power jack for Power-Over-GrowNET to sensors and relays for easy, single-cable connections to the devices.
Agrowtek’s sensors and relays can be powered directly over the RJ45 connection from a hub. A terminal block power input is also available for panel mounted applications.
A ‘master’ upstream port is connected to a device such as the LX1 USB Link or LX2 ModLINK™ interface, or even a downstream port on another HX8 hub. Downstream ports then connect to various Agrowtek GrowNET™ devices including sensors, I/O modules and dosing pumps.
Hubs may be daisy-chained as required up to the maximum number of ports on a bus (247 MODBUS / 250 GrowNET™.) Transceivers on every port provide full signal strength and noise immunity to every device resulting in highly robust communications across large networks of devices.
Ideal for installation in each room of a facility to connect multiple devices to a single cat5 cable. Hubs can be daisy chained as required by connecting the upstream port into another HX8 downstream port.
Important: Pumps require their own power supply.
This Product does not include Tax and shipping costs. International shipping is subject to regulations and Import Taxation of Country of destination.
Tel: (+506) 7037-8077 or Toll Free: 1(800) 2130227
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