240V humidity control relay for TrolMaster Hydro-X — humidifier and dehumidifier automation in one module.
The TrolMaster DSH-2 is a 240V humidity device station designed to integrate commercial humidifiers and dehumidifiers directly into the TrolMaster Hydro-X environmental control system. Rated at 10 amps with plug-and-play RJ12 connectivity, it gives licensed cultivation operators automated, sensor-driven humidity control without additional wiring complexity.
The TrolMaster DSH-2 is a dedicated 240V humidity control relay module built for the Hydro-X ecosystem. It acts as the physical switching interface between your Hydro-X controller and any standard 240V humidifier or dehumidifier — translating the controller's sensor-driven logic into hard on/off switching of the connected appliance.
Unlike generic timers or plug-in smart outlets, the DSH-2 is purpose-built for the Hydro-X bus. It communicates over the same RJ12 daisy-chain network as every other Hydro-X module, so it inherits all of the controller's programmable set points, day/night differential logic, and mobile app oversight without any additional hardware or protocol bridging.
The DSH-2 is the right module when your humidity appliance runs on 240V — a common scenario in commercial and large-scale cultivation facilities where industrial-grade dehumidifiers, whole-room humidification systems, and HVAC-integrated units all operate at higher voltage for efficiency and amperage reasons.
Facilities already running a TrolMaster Hydro-X, Hydro-X Pro, or Hydro-X Plus controller will find this module essential for closing the loop on humidity automation. If your humidity device is plugged into a 240V circuit and you want it governed by the same environmental controller managing your CO2, temperature, and lighting — the DSH-2 is the direct solution. The Hydro-X Plus supports up to 8 humidity device stations on a single controller, making multi-zone humidity control across large canopy footprints straightforward to scale.
The DSH-2 ships with a 16 ft RJ12 cable, a 4 ft RJ12 cable, and an RJ12 T-splitter — everything needed to integrate it into an existing Hydro-X module chain. The 3-prong attaching plug handles the 240V device connection, and onboard LED status indicators make commissioning and troubleshooting straightforward: a fast-blinking green LED signals the module is unaddressed or disconnected; a slow blink confirms it is addressed and standing by; solid green means the relay is active and the connected device is running.
Important sizing note for dehumidifiers: the DSH-2 is rated at 10 amps output, but TrolMaster specifies using it only with dehumidifiers drawing less than 7 amps to maintain safe operating headroom and avoid current overload. For humidifiers, the full 10A capacity applies. Always verify the nameplate amperage of your appliance before wiring.
In a properly configured Hydro-X system, the DSH-2 sits on the RJ12 device bus alongside temperature stations, CO2 stations, lighting control modules, and fan controllers. All modules share the same sensor data from the Hydro-X controller's onboard or external sensors, so humidity set points respond dynamically to real-time conditions in the canopy environment rather than running on fixed timers.
For operators building out new rooms or retrofitting existing facilities with centralized environmental control, the DSH-2 is typically one of the first expansion modules specified — humidity being a primary driver of vapor pressure deficit (VPD) management, pathogen risk, and final product quality. Pairing it with the Hydro-X's app-based monitoring means your humidity appliances are logged, remotely visible, and auditable — a practical advantage for compliance-conscious operations.
| SKU | DSH-2 |
| Input Voltage | 240 VAC, 50/60 Hz |
| Output Voltage Range | 100–240 VAC, 50/60 Hz |
| Output Current (rated) | 10A |
| Recommended Max Current (dehumidifiers) | <7A |
| Maximum Control Current | 0.2A |
| Working Temperature Range | 32–122 °F (0–50 °C) |
| Working Humidity Range | ≤90% RH |
| Package Dimensions | 85 mm (L) × 80 mm (W) × 90 mm (H) |
| Package Weight | 0.34 kg per pack |
| In the Box | 1× DSH-2 Device Station, 1× 16 ft RJ12 cable, 1× 4 ft RJ12 cable, 1× RJ12 T-splitter |
| Compatible System | TrolMaster Hydro-X, Hydro-X Pro, Hydro-X Plus |
The DSH-1 is TrolMaster's standard-voltage humidity device station (100–240V input, same bus). The DSH-2 is specifically designated for 240V device circuits and is the recommended choice when your humidifier or dehumidifier is hardwired or plugged into a dedicated 240V outlet — common in commercial facilities with industrial-grade humidity equipment.
Yes — the DSH-2 is compatible with both humidifying and dehumidifying devices. Within the Hydro-X controller, each module is individually addressed and assigned its function (humidify or dehumidify), so you can run separate DSH-2 units for each device type on the same controller bus.
The 10A rating is the relay's maximum switching capacity. TrolMaster recommends a safety margin — keeping dehumidifiers under 7A — to prevent heat buildup and current overload at the relay contacts during continuous cycling. Always check your dehumidifier's nameplate amperage before connecting.
This depends on the controller tier. The Hydro-X Plus supports up to 8 humidity device stations on a single controller. For exact limits on the Hydro-X or Hydro-X Pro, consult your controller's spec sheet or contact us — we can help match the right controller and module count to your room layout.
No additional hub is required. The DSH-2 connects to your existing Hydro-X RJ12 device bus using the included cables and T-splitter, and is addressed to the controller by pressing the small button on the module during initial setup. The LED indicator confirms successful addressing in real time.
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