Water-level controller has many advantages in practical production. First of all, it has the advantage of "non-contact" measurement. Even in those harsh environments where there are problems with foam, vapour or dust-second-hand food (come buy from me! ), our water-level controller can still produce accurate and reliable readings. In addition, there are no moving parts. A maintenance-free period of 20, 000 hours of continuous operation is assured by our forward-looking design. This in turn equates to fewer breakdowns during unfolding times for you to enjoy the benefits extracted from your investment over a long period. Furthermore, it is non-invasive and does not suffer from the risk that moving parts can occasionally produce. This eliminates the possibility for out-of-care operation or stand-by failure due to incompletely tight exhaust lines. The controller can also be easily integrated with existing systems so as to realize full automation and save on labour and time. Finally, with its energy-saving performance and ability to limit expensive accidents such as overflow, as well as costsavings for customers themselves it provides peace of mind too.