DN20 R400 LoRaWAN Digital Ultrasonic Water Meter
- Extreme Precision: Ultrasonic R400 accuracy detects minimal leaks starting at just 3.33 L/h.
- Flexible Install: Standard DN20 threaded design easily mounts in any position (U0/D0).
- 100% Waterproof: IP68 protection guarantees safe, continuous operation even when fully submerged.
- Smart Ready: Built-in AMR-ready output enables seamless integration for remote automated reading.
- Certified Quality: ISO 4064 compliant featuring a bright, easy-to-read LED digital display.
Next-Generation Ultrasonic Measurement
Experience unparalleled accuracy with our Integrated Ultrasonic Water Meter, engineered for modern water management and precise billing. Complying with stringent ISO 4064 standards, this device utilizes advanced ultrasonic technology to ensure highly stable flow measurement without the wear and tear of traditional mechanical components. The bright, high-contrast LED dial provides immediate and legible consumption data up to 999,999.999 m³, making monitoring effortless for both utility providers and end-users.
Flexible Installation and Robust Design
Designed for maximum pipeline adaptability, this standard DN20 (20mm) threaded meter eliminates the need for straight pipe sections, allowing for seamless installation in any location (U0/D0). Built to thrive in demanding environments, it features an industry-leading IP68 protection class, ensuring it remains fully operational even when submerged. Supported by a robust MAP16 pressure rating and adaptable to diverse temperature environments (T30/T50/T90), this meter guarantees long-term durability and low-maintenance operation.
Key Features & Advantages:
- Exceptional Precision (R400): Delivers an incredibly wide measuring range with an ultra-low starting flow of just 3.33 L/h, capturing the slightest leaks and tracking consumption down to a minimum reading of 0.01L.
- Smart Network Integration: Comes fully AMR Ready, allowing for effortless connection to Automated Meter Reading systems to support IoT networks, remote data collection, and smart city infrastructure.
- Optimized Flow Dynamics: Handles a permanent flow rate of 4 m³/h and peak overloads up to 5 m³/h seamlessly, all while maintaining a highly efficient, minimal pressure loss of ≤0.063 MPa.
Functional Parameters
| Meter Type | Integrated Ultrasonic Water Meter |
| Measuring Principle | Ultrasonic |
| Dial Type | LED |
| Installation Orientation | Any location(U0/D0) |
| Protection Class | IP68 |
| Temperature Class | T30/T50/T90 |
| Pressure Class | MAP16 |
| Accuracy Class | R250/400/500/800 |
| Standard Compliance | ISO 4064 |
| Optional Output | AMR Ready |
Dimensional Parameters
| Nominal Diameter (DN) | DN20 (20mm) |
| Length (L) | 195mm |
| Width (W) | 106mm |
| Height (H) | 118 mm |
| Thread Type | BSP |
| Thread Size | G1B |
| Connection Type | Threaded |
Flow Parameters
| Q1 (Minimum Flow Rate) | 10 L/h |
| Q2 (Transitional Flow Rate) | 16 L/h |
| Q3 (Permanent Flow Rate) | 4 m³/h |
| Q4 (Overload Flow Rate) | 5 m³/h |
| R Value (Q3/Q1) | 400 |
| Starting Flow | 3.33 L/h |
| Pressure Loss at Q3 | ≤0.063 MPa |
| Maximum Reading | 999 999.999 m³ |
| Minimum Reading | 0.00001 m³ (0.01L) |




















