The TrolMaster SPH-1 RJ12 Splitter Hub is designed to simplify the installation and expansion of TrolMaster environmental control systems in indoor growing setups. When running multiple sensors, lighting adapters and device modules in a grow tent or grow room, cable management can quickly become messy and difficult to scale. The SPH-1 solves this by providing a clean, central connection hub that allows multiple devices to connect to a single controller.
Using one RJ12 input, the SPH-1 provides eight RJ12 output ports for connecting TrolMaster sensors, device stations and lighting adapters. As a powered hub, it also boosts signal strength across the network, ensuring reliable communication between devices and allowing growers to expand their hydroponics or indoor growing systems without signal loss.
Key Benefits
• Expands a single RJ12 controller port into 8 RJ12 connections
• Powered hub boosts signal strength for stable communication
• Enables connection of multiple sensors, device modules and lighting adapters
• Helps maintain a clean and organised grow room installation
• Ideal for larger hydroponic systems and advanced indoor growing setups
• Supports control of large numbers of LED or HID grow lights
• Plug & play setup for easy integration with TrolMaster controllers
How It Solves Grow Problems
As indoor growing setups expand, growers often add more sensors, lighting adapters and environmental control modules to optimise plant health. Without a central hub, this can lead to messy daisy-chaining of cables using multiple Y-splitters, making installations difficult to manage and troubleshoot.
The SPH-1 provides a central connection point that simplifies wiring and improves reliability across the control network. With signal boosting built in, it allows more modules, sensors and lighting controllers to be connected without communication issues.
For growers running larger grow rooms or multiple hydroponic systems, the SPH-1 makes it easier to scale environmental control. This helps maintain consistent conditions for vegetative growth and flowering, supporting stable environments that lead to healthier plants and improved yields.
Kit Contents
• 1 × SPH-1 RJ12 Splitter Hub
• 1 × 12V power adapter
• 1 × 4 ft RJ12 cable
How to Use
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Connect the SPH-1 hub to your TrolMaster controller using the supplied RJ12 cable.
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Plug the included 12V power adapter into the SPH-1 to power the hub.
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Mount or position the hub in a central location within your grow room or grow tent.
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Connect sensors, device modules or lighting adapters to the individual RJ12 output ports.
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Configure the connected devices through the TrolMaster controller as required.
Technical Specifications
• Input Voltage: 12V DC
• Maximum Current: 1A
• Operating Temperature: 32–122°F
• Maximum Humidity: ≤90%
• Dimensions: 160mm (L) × 85mm (W) × 90mm (H)
