TrolMaster - Replacement Temp/Humidity/Light 3 in 1 Sensor (MBS-TH)

The TrolMaster MBS-TH 3-in-1 Sensor is a replacement or spare environmental sensor designed for the Hydro-X control system. It accurately measures temperature, humidity and light conditions within your grow tent or grow room, providing essential environmental data that helps maintain stable conditions for indoor growing.

This sensor allows the Hydro-X system to monitor the growing environment and automatically control equipment such as fans, heaters, humidifiers and dehumidifiers. By maintaining balanced environmental conditions, growers can support stronger vegetative growth, healthier root development and improved flowering performance in hydroponic systems, coco or soil.

The MBS-TH also includes a built-in photocell that detects day and night cycles. This allows the Hydro-X controller to adjust environmental strategies based on whether grow lights are on or off, helping maintain stable conditions throughout the entire grow cycle.

Key Benefits

• Measures temperature, humidity and light levels in a single sensor
• Designed for use with the TrolMaster Hydro-X control system
• Built-in photocell automatically detects day/night lighting cycles
• Supports stable environmental control in grow tents and grow rooms
• Helps optimise plant health, nutrient uptake and overall yield
• Plug & play installation with RJ12 connectivity
• Ideal as a replacement or spare sensor for existing Hydro-X systems

How It Solves Grow Problems

Environmental monitoring is essential for maintaining stable indoor growing conditions. If temperature or humidity levels fluctuate without being detected, plants can experience stress that slows vegetative growth, weakens root systems and increases the risk of mould during the flowering stage.

The MBS-TH continuously measures key environmental conditions and sends real-time data to the Hydro-X controller. This allows the system to automatically adjust equipment to maintain optimal growing conditions.

The built-in light sensor also detects whether the grow lights are on or off. This helps the controller adjust temperature and humidity strategies for day and night cycles, ensuring plants receive stable conditions throughout the grow cycle and helping maximise yield.

Kit Contents

• 1 × 3-in-1 Temperature / Humidity / Light Sensor
• 1 × 16 ft RJ12 cable
• 1 × RJ12 T-splitter

How to Use

1. Mount the sensor inside the grow tent or grow room at canopy height for accurate environmental readings.

2. Connect the sensor to the Hydro-X controller using the supplied RJ12 cable.

3. Use the RJ12 T-splitter if additional sensors or modules need to be connected.

4. Ensure the sensor remains dry and clean to maintain accurate readings.

5. Avoid spraying water, nutrients or other substances directly onto the sensor to prevent damage.

Technical Specifications

• Output Voltage: 0–11.5V
• Maximum Current: 0.2A
• Operating Temperature: 32–122°F
• Maximum Humidity: ≤90%
• Dimensions: 160mm (L) × 86mm (W) × 86mm (H)**