Humminbird products typically have an IP (Ingress Protection Rating) rating of IPX7. If a product is not IPX7, it will be indicated as such in the product specification section of that model in the Product section of our web site.  

This is a tested and rated measurement that indicates the degree of of protection provided against the intrusion of dust, accidental contact and water.  Equipment having this rating must be able to withstand submersion in water to a maximum depth of one meter for 30 minutes.