Specifications include, but are not limited to: 3.3.1.1 Flow monitor enclosure will be NEMA6P and IP68 rated (1 bar) for protection against dust and long periods of liquid immersion under pressure. This includes the monitor enclosure, cable connection to the sensors and sensor cables themselves to protect against submergence 3.3.1.2 Flow Monitor connectors shall be the equal to U.S. MIL-C-26482, Series 1 connectors made of hard anodized aluminum with interfacial seals and gold plated contacts. 3.3.1.3 Flow Monitor shall function between -20 and 40° C (-4 and 104° F). 3.3.1.4 Flow Monitor shall measure the velocity and depth of sewage within a collection system pipe or conduit. Flow monitor shall calculate the flow rate from these primary measurements