These steam generators have been designed for domestic and commercial use. The water tank is made of corrosion resistant steel and the heating elements are corrosion resistant + protected by thermo-fuses. The generators have water level and dry run protection. The built-in 25 min. timer can be disabled if not needed. Pneumatic remote on/off switch, separate 12V signal light and some other technical details showing the advanced technology. The generator is available in all general voltages and phases.