Overview
Equipped with advanced non-contact ultrasonic sensing technology, Viewshine residential smart water meters deliver highly accurate flow measurement across an extensive measuring range.
Designed without any internal moving parts, the device eliminates mechanical wear, minimizes pressure loss and guarantees stable long-term performance. Capable of detecting ultra-low flow as little as 2 L/h, it caters perfectly to household water measurement and significantly reduces non-revenue water loss for water utilities.
Main Features
1. R400/R250, Wider Dynamic Range
2. U0/D0
3. Lowest Flow Rate: 2L/h
4. Free from Influence of Impurity and Magnetic Field
5. 12+ Years' Design Life Time
6. Vertical/Horizontal Installation
7. LCD Display
8. IP68 protection
Technical Parameters
| Specifications | ||||
| Standards | ISO 4064-1:2017;OIML R49:2013 | |||
| Accuracy class | Class 2 | |||
| Nominal diameter | DN | mm | 15 | 20 |
| Permanent flow rate | Q3 | m³/h | 2.5 | 4 |
| Overload flow rate | Q4 | m³/h | 3.125 | 5 |
| Transitional flow rate | Q2 | L/h | 10 | 16 |
| Minimum flow rate | Q1 | L/h | 6.25 | 10 |
| Measurement range | R | Q3/Q1 | R400 | |
| Starting flow | – | - | 2 L/h | |
| Range for R400 | – | Q2/Q1 | 1.6 | |
| Temperature class (EN and OIML) | – | ℃ | T50/T30 | |
| Flow profile sensitivity class (EN) | – | – | U0/D0 | |
| Counter indication range | – | m³ | 99999.999 | |
| Scale interval value | – | m³ | 0.000001 | |
| Maximum permissible error in the range of Q2 ≤ Q ≤ Q4 | ε | % | 0. 1℃<=T<=30℃: ±2%; 30℃ | |
| Maximum permissible error in the range of Q1 ≤ Q < Q2 | ε | % | ±5 | |
| Battery | – | V | 3.6 | |
| Max battery life | Years | 12 | ||
| Communication interfaces | – | – | LoRaWAN/NB-IoT/Pulse | |
| Water pressure class | (EN) | bar | MAP16 | |
| (OIML) | 0.3 to 16 | |||
| Maximum pressure loss | – | 0.63 | ||
| Installation orientation | – | – | All Positions | |
| Reverse flow | – | – | Measurable reverse flow | |
| Relative humidity | – | % | ≤ 100 | |
| IP rating | – | – | IP68 | |
| Water meter tube material | Brass | |||
Dimension
| DN | L(mm) | Meter Thread | Pipe Thread | L1(mm) | L2(mm) | H(mm) | H1(mm) |
| 15 | 110 | G¾B | R½ | 202 | 82 | 19.5 | 87 |
| 115 | G¾B | R½ | 207 | 82 | 19.5 | 87 | |
| 165 | G¾B | R½ | 257 | 82 | 19.5 | 87 | |
| 20 | 110 | G1B | R¾ | 212 | 82 | 22 | 90 |
| 115 | G1B | R¾ | 217 | 82 | 22 | 90 | |
| 190 | G1B | R¾ | 292 | 82 | 22 | 90 |
Why Choose Us
1. Advanced Automated Production Lines
Our automated workshops mass-produce IoT ultrasonic smart water meters, delivering stable supply and on-time delivery for bulk utility orders and bidding projects.
2. Complete Global Certifications
Our remote reading water meters are certified MID, OIML R49 and ATEX. We also hold full ISO management system accreditations.
3. Custom OEM & ODM Support
As a professional water meter factory, we tailor residential ultrasonic water meters on communication, valves and appearance to match your needs.
4. Strict End-to-End Quality Control
We use premium raw materials for all wireless smart water meters. Full-process inspections guarantee consistent top product quality.
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