The ERUN series portable water quality rapid analyzer for farmland irrigation water developed and produced by Erun Group is a solution designed with reference to the "GB 5084". The water quality testing instrument of irrigation water for crops is suitable for local ecological environment authorities, agricultural and rural authorities, water conservancy and other authorities to test the water quality of agricultural irrigation water sources using surface water and groundwater. The water quality analyzer of agriculture and rural areas can mainly be used to test the pH, temperature, suspended solids, BOD5, CODCr, anionic surfactants, chlorine ions, sulfides, salinity, lead, cadmium, hexavalent chrome, mercury, arsenic, thermotolerant coliforms, aerobic bacterial count, etc. of irrigation water for paddy fields, dry land crops, and vegetables.

The ERUN series reuse of urban recycling water of farmland irrigation water developed and produced by Erun Group is a solution designed based on the "GB 20922-2007". The water quality analyzer of recycling regenerated and reused agricultural can mainly be used to detect BOD5, CODCr, SS, DO, pH, TDS, chlorine ions, sulfide, residual chlorine, oil, volatile phenols, anionic surfactants, mercury, cadmium, arsenic, hexavalent chrome, lead, thermotolerant coliforms, aerobic bacterial count, etc. The water quality testing instrument of urban sewage reuse farmland irrigation is suitable for testing the water quality of farmland irrigation water that has been regenerated and treated from domestic sewage, industrial sewage, agricultural sewage, etc., using the effluent from urban sewage treatment plants as the water source.