The anti-fouling WIPER is a self-contained, completely submersible wiping device compatible with the miniDOT® Logger, miniDOT Clear® Logger, miniPAR Logger, C-FLUOR Loggers, Cyclops-7 Loggers and various T-Chain sensors. Its brushing wheel rotates over the sensor surface, reducing the growth of various organisms and preventing biofouling. After each rotation the brush rests away from the sensor to avoid any monitoring interference, allowing for accurate and continuous monitoring. Each WIPER is shipped with an anti-fouling copper plate for additional determent of settling and growth. Wiper requires bracket to attach to individual loggers.