TrolMaster is a modular environmental control system rather than a single controller. You start with the Hydro-X base station, then plug in device stations for whatever you want to control - lights, heaters, dehumidifiers, CO2, fans - and it runs them all from one set of sensor readings. It is the closest thing to a commercial building management system that fits in a home grow room.
- Base station: The Hydro-X HCS-1 3-in-1 base station - the brain everything else connects to.
- Device stations: Plug-in modules for temperature (DST-2U), humidity (DSH-2 / DSH-2U), CO2 (DSC-2) and timed devices (DSP-2), so ordinary mains equipment becomes controllable.
- Sensors: The MBS-TH 3-in-1 temperature, humidity and light sensor and the MBS-S8 CO2 sensor - see more meters and sensors.
- Fan and humidity control: The EFC-1 EC fan controller and HS-1 humidistat station for 24V commercial dehumidifiers. Browse fan controllers.
- Lighting control: Hydro-X lighting control adapters for dimming and scheduling fixtures - see controllers and contactors.
- Tent-X: The TCS-1 smart grow tent controller, which brings environment and irrigation automation to a single tent without the full Hydro-X build.
- Extras: The TC-1 grow camera, RJ12 splitter hub (SPH-1) and the BETA-4 digital day/night temperature controller for simpler setups.
Why choose TrolMaster?
One set of readings driving every device. Most rooms end up with a thermostat fighting a humidistat fighting a fan controller, each with its own sensor and its own idea of the target. TrolMaster removes that by making every device act on the same data, and it logs what happened so you can see why.
TrolMaster FAQs
Do I need the full Hydro-X or is Tent-X enough?
Tent-X (TCS-1) covers a single tent including irrigation and is far simpler. Hydro-X is the modular system for a room with multiple devices and zones.
What is a device station?
A plug-in module that lets the controller switch and control a specific type of equipment. You buy the stations for the devices you actually have.
Can it control my existing dehumidifier?
Through a humidity device station, yes for mains-switched units. The HS-1 handles 24V commercial dehumidifiers with their own control input.
Why buy TrolMaster from The Hydro Bros?
We stock the TrolMaster range in full, ship discreetly across the UK and Europe, and know these products because we use them. With excellent customer reviews on Trustpilot and staff who actually grow, you get the right kit first time.






