Portable water quality devices for outdoor use have measurement principles that comply with environmental industry approved methods. Equipped with a 3.5-inch color touchscreen. The colorimetric method uses tube colorimetry, allowing rapid determination of COD, ammonia nitrogen, total phosphorus, and total nitrogen concentrations in water without needing to be transferred to the cuvette dish. The product comes with built-in applications for water quality analysis, data queries, and guided detection modes. It is widely used in scientific research, universities, wastewater treatment plants, water environment testing, and corporate wastewater self-inspection.

Optical stability: ≤±0.003 Abs/20 minutes

Colorimetric method: 16mm colorimetric tube (no need for digestion or pipette)

Indication error: ≤± 5%

Repeatability: ≤± 3%