Trolmaster Water Content Sensor 3 w/ Splitter Cable Set (WCS-3)

The TrolMaster WCS-3 Water Content Sensor is designed to measure the moisture level of your growing medium in real time, helping growers maintain accurate irrigation control in hydroponics and indoor growing systems. By displaying water content as a percentage (WC%), the WCS-3 allows growers to monitor exactly how much moisture is available in the root zone, helping prevent both overwatering and underwatering.

The sensor integrates directly with TrolMaster controllers including Aqua-X, Aqua-X Plus, Aqua-X Pro, Hydro-X Pro and Tent-X systems. When connected, growers can view live moisture readings directly on the controller or through the TM+ Pro mobile app. This level of monitoring helps ensure consistent watering conditions that support healthy root development, strong vegetative growth and improved plant health across soil, coco and hydroponic systems.

Key Benefits

• Measures growing medium moisture levels as WC% for precise irrigation control
• Compatible with Aqua-X, Aqua-X Plus, Aqua-X Pro, Hydro-X Pro and Tent-X systems
• Built-in LCD display shows real-time water content readings
• Mobile monitoring and alerts through the TM+ Pro app
• Supports historical data tracking and moisture trend analysis
• Ultra-slim probe design for easy insertion into soil or coco
• Daisy-chain capability for multiple sensors in larger grow setups

How It Solves Grow Problems

Incorrect watering is one of the most common problems in indoor growing. Overwatering can suffocate roots and slow plant growth, while underwatering can stress plants, limit nutrient uptake and reduce yields.

The WCS-3 gives growers direct visibility into root zone moisture levels, allowing irrigation to be adjusted based on real data rather than guesswork. This is especially useful in automated hydroponic systems or drip irrigation setups where precise watering cycles are critical.

By maintaining the correct moisture level in coco, soil or other growing media, growers can promote stronger root development, consistent nutrient uptake and stable plant growth. The result is healthier plants during vegetative growth and improved bud density and yield during the flowering and bloom stages.

How to Use

1. Insert the WCS-3 probe into the growing medium near the plant’s root zone.

2. Connect the sensor to a compatible TrolMaster controller using the included splitter cable.

3. Power on the controller and allow the sensor to initialise.

4. View the current water content percentage on the sensor’s built-in LCD display.

5. Monitor readings through the controller interface or the TM+ Pro mobile app.

6. Configure moisture alarms or irrigation adjustments based on the WC% readings to maintain optimal root zone moisture.