IP67 refers to scales that are good for heavier washdown applications. IP means ingress protection and the numbers carry meaning as well. The first 6 means there will be no intrusion of dust into the enclosure. The 7 means that the scale can be pressure washed, with room temperature water, through a high powered 12.5 mm nozzle from any angle. The scale can also be submerged in up to 1 meter of water for 30 minutes. For more information check out our blog on IP Ratings Explained.