... Apparatus—Wireless GSM/GPRS/RTU Water Level /Rainfall Data Acquisition/Collector/LoggerIntroduceIt is a real-time acquisition device ... to collect, deal and storage hydrological multi-parameter data, which applies communication, telemetry, and computer technology to ... LCD*: Station number, time, water level, rainfall;* Coefficient is set: the station number, elevation, clock, mounting height, K ( ...