The RWC-A-DUL Molded 3-cup ultraviolet protected polycarbonate anemometer is designed for fountains where automatic spray height/reduction and/or system shutdown is required due to heavy wind conditions which may cause water to blow out of the fountain pool. Its rotor shaft is supported by a beryllium copper shaft riding in Teflon bearings. The RWC-A-DUL is mounted at a height equal to the maximum spray height and as close to the fountain pool as possible. This unit is intended for use with the 3.27a RWC-SM-DUL. Control wire (18-3 shielded) is by installer.