NIJIN was founded in 1992. NIJIN offer many kinds of instruments, such as: meteorological instrument, hydrology Instrument, oceanic Instrument, hydraulic engineering laboratory Instrument, wave maker, flow calibration instrument, rainfall level remote system, hydrology resource control and measuring, reservoir and river hydrologic control and measuring, wave high and tide observation, artificial rainfall testing, automation earthquake observation system, tank or mudflows and landslides and so on. The following services are responsible by professional engineer: system design, instrument import, instrument installation, regular maintenance, breakdown maintenance and system invention.