The WASEX washer pump is an important element for effective video surveillance in hazardous areas because it guarantees sharp images in all environmental conditions and reduces the need for maintenance. The WASEX system is designed for the MAXIMUS series. The kit is composed of a 10 L stainless steel tank with an explosion-proof certified solenoid valve and some versions of the product also have an explosion-proof certified pressure switch. The pressure switch is used to control the pressure in the tank. Some versions of the WASEX product are Lloyd's Register Type Approval System Test Specification Number 1 certified and therefore can be used in Marine and Offshore applications for environmental categories ENV1, ENV2, ENV3 and ENV5.