... protection 3.automatic 7 years factory high efficient steam generating machine Power: 4KW,6KW,7.5KW,9KW,10.5KW,12KW,18KWFunctions ... N-series, this generator is reliable and efficient. To operate, switch on using the in-shower pneumatic button, then, when you ... off again, after 25 minutes, a safety timer will automatically switch the generator off. Available in four power options. Specifications: Model ...