Handheld multi-parameter water quality analyzer5-inch color touch screen, built-in printer, no chemical reagents required, eco-friendly and non-toxic, uses electrode sensors for detection.Real-time data transmission4G Communication Module, testing items include COD, TOC, ammonia nitrogen, turbidity, suspended solids, chlorophyll, cyanobacteria, residual chlorine.pH, Dissolved Oxygen, Temperature, Conductivity, ORP, TDSWater in oilItems suitable for harsh working conditions, featuring built-in high-capacity lithium-ion batteries, stable instrument performance, accurate measurements, easy operation, and a comprehensive solution for clients' field and laboratory testing, monitoring, and data management.HandheldWater Quality Testing Equipment Available for immediate delivery, free on-site demonstration and trial run.