The IP Code, or Ingress Protection Code, sometimes referred to as International Protection Code, IEC standard 60529 classifies and rates the degree of protection provided by mechanical casings and electrical enclosures against intrusion, dust, accidental contact, and water. It is published by the International Electrotechnical Commission (IEC). The equivalent European standard is EN 60529.
This basically means our products which are clasified as IP69K can withstand water to a depth of at least 2m and high preasure high temperature water as well.
For more information on the IP rating system see, https://en.wikipedia.org/wiki/IP_Code