This device is for the simpler humidifiers (ones where you fill up with water and turn a dial). For the humidifiers that have it's own control panel/humidistat (like the Quest), you will need the HS-1 . Don't confuse it with the TSH-1 which is for EC fans...but tbh, until there are firmware updates on it, we would recommend running your fans on the Enviro Controller! 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 dehumidifiers less than 7 amps to avoid current overload. Features: LED Power Indicator 3-Prong Attaching Plug RJ12 Cable Socket Addressing Plug & Play Contents: 1 x Device Station 1 x 16ft RJ12 Cable 1 x 4ft RJ12 Cable 1 x RJ12 T-Splitter Specifications: Input Voltage: 240 Volts AC, 50/60Hz Output Current: 10A Output Voltage: 100~240 VAC, 50/60Hz Working Environments: Temperature 32-122°F, Humidity≤90% Package Dimensions: 85mm(L) x 80mm(W) x 90mm(H) G.W. per pack: 0.34kg