CO2 Device Station / CO2 Control Relay Single Pack with cable set

What the DSC-1 Does

The TrolMaster DSC-1 is a CO2 control and device station module purpose-built for the Hydro-X environmental control platform. It acts as the relay interface between your Hydro-X controller and any CO2 supplementation or exhaust device — generator burners, tank solenoids, CO2 controllers with a switched outlet, or CO2-triggered exhaust dampers.

Once addressed to the controller, the DSC-1 activates or deactivates the connected CO2 device based on the PPM setpoint programmed in the Hydro-X. When paired with TrolMaster's CO2 sensor (MBS-S8), the controller reads live PPM, the DSC-1 closes the relay when CO2 drops below target, and opens it when the setpoint is satisfied — a complete closed-loop CO2 dosing circuit over a single RJ12 bus.

The module supports the full world voltage standard (100–240 VAC, 50/60 Hz) at up to 10 amps, covering virtually every commercial CO2 device on the market at 120V or below.

Where It Fits in a Commercial Build

The Hydro-X system is built on a modular RJ12 bus architecture. The DSC-1 daisy-chains into that bus alongside temperature, humidity, lighting, and timer device stations. Modules are addressed to the controller with a single button press — no dip switches, no configuration software. The HCS-1 (Hydro-X) supports up to two CO2 device stations per zone; the HCS-2 Pro and HCS-3 Plus scale further for multi-zone commercial operations.

For licensed cannabis and hemp facilities with high-CO2 cultivation protocols — targeting 1,200–1,500 ppm during lights-on periods — the DSC-1 is the hard control point that ties your CO2 hardware into the same centralized system managing temperature, humidity, and lighting. Running CO2 on a standalone timer is a common source of CO2 waste and out-of-window dosing; the DSC-1 closes that gap by making CO2 dispatch sensor-triggered and controller-coordinated.

The module also supports manual override via a button hold on the unit itself, giving cultivation staff a physical override without having to access the controller — useful during maintenance or crop transitions.

Hardware Features & LED Status Feedback

The DSC-1 is built for a working grow environment. Key hardware features include a 3-prong attaching plug for direct connection to standard outlets, an RJ12 cable socket for bus integration, plug-and-play addressing, and a front-panel LED power indicator that provides real-time module status at a glance.

LED behavior is diagnostic without needing a phone or app: a fast-blinking green LED indicates the module has not yet been addressed to the controller or has lost connection. A slow-blinking green LED means the module is addressed, connected, and currently in the OFF state (CO2 device inactive). A solid green LED confirms the module is addressed, connected, and actively switched ON. A blinking red LED signals an overload condition — unplug to reset.

The included cable set contains one 16 ft RJ12 cable, one 4 ft RJ12 cable, and one RJ12 T-splitter, covering most single-room installation layouts out of the box. Additional RJ12 cables and splitters are available separately for larger or more complex runs.

System Compatibility & What to Order Alongside It

The DSC-1 is compatible with TrolMaster's Hydro-X (HCS-1), Hydro-X Pro (HCS-2), Hydro-X Plus (HCS-3), and Carbon-X control systems. All device station modules on the Hydro-X platform remain cross-compatible across controller tiers, so a DSC-1 installed on an HCS-1 today carries over if you upgrade the controller.

To build a complete closed-loop CO2 system, you'll need the DSC-1 paired with a CO2 sensor (TrolMaster MBS-S8) and a compatible Hydro-X controller if not already installed. The DSC-1 alone is a relay/switching module — it depends on sensor feedback at the controller level to deliver automated setpoint control. Without the sensor, the controller will not have live PPM data to trigger the relay.

HSC carries the full TrolMaster Hydro-X device station lineup — temperature, humidity, CO2, timer, dry-contact, and lighting adapter modules — as well as the compatible sensors and controllers. If you're speccing out a complete climate automation build, contact us for a consolidated quote covering all the modules your zone count and control architecture requires.