Overview
These Wide Range Water Quality Testers are designed to deliver accurate monitoring of various fluids including water, sewage, and seawater under diverse conditions. Built to operate reliably in extreme environments with temperatures from -30℃ to 45℃ and 100% humidity, they ensure durability with IP68 protection. The system supports multiple communication interfaces such as RS485, USART, infrared, M-BUS, and NB-IoT wireless for flexible connectivity. With ultra-low power consumption, dual-row display, and ferroelectric storage, it provides accurate real-time data and long-term records. Its rugged construction using carbon steel, stainless steel, PEEK sensors, and nylon-glass fiber ensures stability and precision over years of continuous use.
Features
- Complies with ISO4064-2014 and GBT778-2018 standards
- Measures water, sewage, seawater, and other liquids
- Operates in extreme environments with full humidity tolerance
- Withstands high pressures of 1.6 MPa and 2.5 MPa options
- IP68 protection for reliable performance in harsh conditions
- Multi-interface communication including NB-IoT wireless
- Dual display with accumulated and instantaneous flow readings
- Data storage with 32 months and 31 days record backup
- Ultra-low power consumption, lasting over 20 years
- Built with durable carbon steel, stainless steel, and PEEK
Technical Specifications
| Items | Parameters |
| Measurable Fluid | Water, sewage, seawater (other liquids customizable), liquid-filled pipeline |
| Fluid Temperature | 0.1 – 30℃ |
| Work Environment | Temperature: -30 – 45℃; Humidity: 100% (RH) |
| Bearable Pressure | 1.6 MPa, 2.5 MPa (optional) |
| Pressure Loss | DN15–DN40: △P40; ≥DN50: △P10 |
| Upstream Sensitivity Grade | U3 |
| Downstream Sensitivity Grade | D0 |
| Climate & Mechanical Class | C Class |
| Electromagnetic Compatibility | E2 Class |
| Communication Interface | RS485, USART, Infrared, M-BUS (optional); NB-IoT wireless transmission |
| Output Signal | OCT (optional) |
| Power Supply | 2 built-in lithium batteries / External DC 8–24V |
| Protection Grade | IP68 |
| Display | Dual-row screen: 9-digit accumulated flow, 6-digit instantaneous flow, symbols & units |
| Data Storage | Ferroelectric storage; records accumulated flow for past 32 months & 31 days |
| Flow Measurement Cycle | Measurement: 1 time/second (settable); Authentication: 4 times/second |
| Power Consumption | Standard <30 μA; works 20+ years continuously |







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