RJ12 Splitter Hub with cable set

Add More Sensor and Module Connections to One Controller

The TrolMaster SPH-1 is a powered splitter hub that takes a single RJ12 connection from your controller and splits it into eight output ports, with onboard power boosting signal strength so additional sensors and modules stay reliable.

This makes the SPH-1 useful once your Hydro-X or Aqua-X system has filled its built-in device slots and you need to connect more sensors, adapters, or stations than the controller supports directly.

Key Features & Benefits

• 8 Output Ports — Splits one controller connection into eight RJ12 outputs.
• Powered Signal Boost — Maintains signal strength across multiple connected devices.
• Cable Set Included — Comes ready to connect to your controller out of the box.
• Expands Controller Capacity — Adds connections beyond a controller's built-in device slots.

Who Should Use the SPH-1 Splitter Hub

Growers who have filled all the built-in device slots on their controller and need to connect additional sensors or modules will want the SPH-1 to expand their system.

Check Power Supply Compatibility First

If you're using the SPH-1 alongside certain LMA-series lighting adapter configurations, do not connect the SPH-1's own 12 volt DC power supply at the same time — consult your adapter's documentation or TrolMaster support to confirm the correct power setup for your specific combination of devices.

Frequently Asked Questions

How many devices can connect to the SPH-1?

Up to eight devices, one per output port.

Does the SPH-1 need its own power supply?

Yes, in most setups, though it should not be powered separately when used with certain LMA lighting adapter configurations — check compatibility before connecting power.

What cable comes with the SPH-1?

A cable set for connecting the hub to your controller is included.

Why would I need a splitter hub?

If your controller's built-in device slots are full and you need to connect more sensors or modules, the SPH-1 adds the extra connections.