Specifications include, but are not limited to: . The towers are in need of retrofitting so that the meteorological instruments can be serviced and audited by a single individual. Currently, the towers require two personnel to lower and raise the towers to perform the necessary semi-annual audits or emergency repairs of meteorological instruments. This has the potential for personnel injury and/or damage to the meteorological instruments. The retrofit will be beneficial to AQB Monitoring and Quality Assurance section personnel as it uses a Hand Operated Elevator (HOE) system that allows for one person operation without having to lower or raise the tower. The retrofit will be purchased from and installed by a certified vendor of the HOE system.