TrolMaster 240V Humidity Device Station（DSH-2）The TrolMaster DSH 2 Humidity control device modules (240V) allow the user to easily connect and control standard humidifying or dehumidifying devices to the Hydro x. The DSH modules are rated @ 10 amps. *Use with dehumidifiers less than 7 amps to avoid current overload. LED status:* Blinking green FAST: If the LED is blinking quickly, that means the module has not been addressed to the controller OR that module does not have a good connection to the