IP69K - This rating indicates the device is built to withstand extensive wash downs with corrosion resistance against cleaning agents, especially against close-range high-pressure, high-temperature washdowns. The level of protection allows for easy cleaning and sterilization using water with temperatures of up to 80°C and pressure of up to 30 Bar.
IP67 - This rating indicates the device is
actually protected even when immersed in as much as 1 meter (3.3 feet) of
water. The sealed IP67 design protects the internal components from dust and
water.
IP66 - Complete protection against contact (dust-tight)
and water projected in powerful jets (12.5 mm nozzle) against the enclosure
from any direction shall have no harmful effects.
IP65 - IP rated as "dust tight" and
protected against water projected by a nozzle (6.3 mm) against enclosure from
any direction. IP65 rated panel PCs can be sprayed clean and prevent
ingredients from making their way into the system and causing damage to
components.