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Blue TrolMaster water content sensor with display showing 45% and three metal probes.
Blue TrolMaster water content sensor with a display showing "45%".
Blue soil moisture sensor with three silver prongs and "TrolMaster Water Content Sensor" text.
Blue TrolMaster water content sensor with display showing 45% and three metal probes.
Blue TrolMaster water content sensor with a display showing
Blue soil moisture sensor with three silver prongs and

TrolMaster WCS-1 Substrate Water Content Sensor

Official TrolMaster Dealer Model: WCS-1
$241.50 USD$229.43 USD$241.50 USD
 $241.50 USD
starting from 0% interest financing from /mo.

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Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
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Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
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Finance up to:$4,000
Must apply on a desktop device.
Schedule:Flexible
Term:Up to 36 months
Interest:Processing fee + interest
Lease-to-Own?Yes
Amount:$500 to $10,000
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  • Real-time substrate moisture monitoring across a full 0 to 100 percent range
  • Integrated LCD provides instant on-site moisture readouts without a controller
  • Plug and play integration with Aqua-X, Green-X, and Tent-X control systems
  • 3-year warranty on all mechanical and electronic components
  • View More Details

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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are adding substrate monitoring because your timed irrigation cycles cannot account for shifting dry-down rates.
  • You are automating root zone data because guessing moisture levels by hand weight leads to inconsistent feeding zones.

What We Found

  • The onboard LCD is a real time saver because it allows for quick spot checks without opening the app
  • We found that the 16ft cable gives you plenty of slack to reach the far corner of a standard grow tent

What Users Say

  • Growers who switched to sensor-based triggers report they stopped guessing and finally hit their dry-down targets
  • Users who linked this to the app say they stopped making unnecessary trips to the room just to check moisture

TrolMaster WCS-1 Water Content Sensor | Real-Time Substrate Moisture Monitoring

The TrolMaster WCS-1 provides precise, real-time measurements of the water content percentage within your growing medium. It integrates directly with the Aqua-X Irrigation Control System to automate irrigation cycles based on actual root zone data rather than static timers. This digital meter allows growers to visualize dry-down times and prevent crop stress from over-watering or under-watering.

TrolMaster WCS-1 Water Content Sensor in use
0-100%Measuring range
8pcsMaximum sensors per system
12VDCInput voltage
0.1AMaximum input current

In Detail

TrolMaster TrolMaster WCS-1 Water Content Sensor application view

The WCS-1 utilizes a multi-probe design to capture accurate water content data from the root zone. By connecting to the Aqua-X controller, the sensor sends data to the TrolMaster app for historical graphing and real-time alerts. This visibility is essential for fine-tuning irrigation frequency and volume to match the specific transpiration rates of your crop.

  • Onboard LCD display provides immediate moisture readings at the plant site.
  • Addressing button allows for quick identification within the Aqua-X network.
  • Automated alarms trigger when moisture levels exceed or fall below your setpoints.
  • RJ12 connectivity ensures a stable, plug-and-play interface with the sensor board.
  • Micro SD slot facilitates local firmware updates and data management.

Features

Real-Time Measuring

The sensor tracks water content percentage from 0 to 100 percent to provide constant visibility into substrate moisture levels.

Integrated LCD Display

A built-in screen allows for manual checks in the grow room without needing to access the mobile application.

Setpoint Alarms

The system generates an alert when moisture levels deviate from your established parameters to protect against crop loss.

Addressing Button

A dedicated button simplifies the assignment of each sensor to the Aqua-X controller for streamlined multi-zone setups.

Compare the Substrate Sensor Line

Measurements
EC Range
Temperature Range
Best For
WCS-3WCS-3
Water Content
N/A
32~122℉
High-precision digital moisture tracking.
WCS-9WCS-9
Water, EC, Temp
0~30 mS/cm
32~122°F
Professional multi-parameter root zone analysis.
WCS-2WCS-2
Water, EC, Temp
0–5 mS/cm
32–122°F (0–50°C)
Growers needing nutrient and temperature data.
WCS-1WCS-1You're viewing
Water Content
N/A
N/A
Essential moisture monitoring for automated irrigation.

Technical Specifications

ELECTRICAL
Input Voltage12 VDC
Max Input Current0.1A
DC12V-1A
PERFORMANCE
Measuring Range0~100%
Water Content SensorMaximum 8 pcs
ENVIRONMENTAL
Working EnvironmentsTemperature 32°-122°F, Humidity=90%
IDENTIFICATION
ModelWCS-1

In the Box

  • 1 x Water Content Sensor
  • 1 x RJ12 T-Splitter
  • 1 x 16ft RJ12 Cable

Warranty

The WCS-1 is covered by a manufacturer warranty against defects in materials and workmanship. The warranty period ensures reliable operation within specified environmental conditions. Trimleaf is an authorized TrolMaster retailer; this unit ships with the full manufacturer warranty, valid for the original purchaser.

Owner's Manual

Product Manual

Frequently Asked Questions

Can I use the WCS-1 as a standalone moisture meter?

No, the WCS-1 requires a TrolMaster Aqua-X controller to function and display data within the mobile app. It is designed as a component of the larger irrigation control ecosystem.

How many WCS-1 sensors can I connect to a single Aqua-X system?

You can connect a maximum of 8 sensors to one Aqua-X controller. This allows for moisture monitoring across multiple zones or trays within a single grow room.

Does this sensor measure the nutrient concentration or EC of the substrate?

The WCS-1 measures water content percentage only. If you require electrical conductivity (EC) and temperature data, consider upgrading to the WCS-2 or WCS-9 models.

Can I visualize the dry-down period on my phone?

Yes, when connected to an internet-enabled Aqua-X controller, the data is graphed in the TrolMaster app. This allows you to identify exactly when your plants reach their wilting point or require irrigation.

Is the sensor compatible with all types of growing media?

The WCS-1 is compatible with most standard hydroponic substrates including rockwool, coco coir, and soil. The probes must be fully inserted into the medium to ensure accurate readings.

What happens if the moisture level drops too low?

The Aqua-X system can be configured to trigger an alarm or activate an irrigation pump when the sensor detects that your moisture setpoint has been exceeded.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

Why Trimleaf

Equipping home growers, craft producers, and commercial operations across North America since 2016.

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Years of Specialist Knowledge
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