A water meter transmission system reads data from a water meter and wirelessly transmits data to a central billing or receiving system. Disclosed transmission systems are fully integrated and contained within pit housings such that the electronic components are well protected. A flat spiral VHF antenna is integrated into a specially configured integrated antenna cover which fits into the top cover of a pit housing. The antenna cover and/or upper lip area of the upper lip of the main housing comprises protrusions complementary to the distal barrier and medial barrier of the integrated cover and is used to exclude water and contaminates. Disclosed transmission systems offer high output and low power consumption and vitiate the need for meter readers to physically access a water meter or other meters.