overview

VIEWSHINE's indoor water meter is designed specifically for high-rise apartments and villas, using advanced ultrasonic technology and integrating LoRaWAN/NB IoT dual-mode wireless communication to achieve ± 0.5% full range accuracy. Its revolutionary non mechanical component design breaks through the limitations of traditional mechanical watches, ensuring 12 years of maintenance free operation under a working pressure of 16 bar, extending the lifespan of mechanical watches by 300%.
Key Technical Features
1. Minimum pressure loss
2. Compact in size and sturdy in design
3. Wide dynamic range: R800/R500
4. Leak detection can be performed without air measurement
5. Data retransmission and retransmission mechanism
6. No moving parts, 12 years+design service life
7. Durable composite materials, environmentally friendly and pollution-free
8. Strong anti-interference performance, not affected by media or external magnetic fields
9. Water quality testing report
10. Multiple communication
11. Install in any location
12. Traffic zoning measurement statistics

Technical Parameters
|
Type |
U-WR2 |
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Size |
DN15 |
DN20 |
DN25 | |
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Range and Capacities |
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Q3 |
1.6/2.5 m³/h |
2.5/4.0 m³/h |
6.3 m³/h | |
|
Q4 |
3.125 m³/h |
5.0 m³/h |
7.875 m³/h | |
|
Q2 |
8 L/h |
12.8 L/h |
12.6 L/h | |
|
Q1 |
5 L/h |
8 L/h |
7 L/h | |
|
Qstart |
2L/h |
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Dynamic Range |
R250/R400/R500/R800 |
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Standard |
ISO4064:2014/ OIML: R49-2013 |
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Electrical |
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Battery |
3.6V, Li-battery |
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EMC |
E1 |
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Mechanical |
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Environmental Classification |
Class O |
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Protection Class |
IP68 |
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Medium Temperature |
0.1~50℃(T50) |
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Storage Temperature |
-25~60℃ |
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MAP |
1.6MPa |
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Metrological |
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Accuracy |
±5% in range Q1≤Q<Q2 ±2% in range Q2≤Q≤Q4 |
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Head Loss |
0.4bar @ Q3 |
0.25bar @ Q3 | 0.4bar @ Q3 | |
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Communication |
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LoRa RF |
LoRaWAN Class A |
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NB-IoT |
Standard |
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Pulse Output |
Customized |
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| M-Bus/wM-Bus | Standard | |||
Dimension

|
DN |
L(mm) |
Meter Thread |
Pipe Thread |
Extension Pipe Used |
L2(mm) |
H(mm) |
H1(mm) |
|
15 |
110 |
G¾B |
R½ |
None |
82 |
16 |
82.2 |
|
115 |
G¾B |
R½ |
None |
82 |
16 | 82.2 | |
|
130 |
G¾B |
R½ |
None |
82 |
16 | 82.2 | |
|
165 |
G¾B |
R½ |
None |
82 |
16 | 82.2 | |
|
170 |
G¾B |
R½ |
None |
82 |
16 | 82.2 | |
|
20 |
110 |
G1B |
R¾ |
None |
82 |
18.5 |
83.2 |
|
115 |
G1B |
R¾ |
None |
82 |
18.5 | 83.2 | |
|
130 |
G1B |
R¾ |
None |
82 |
18.5 | 83.2 | |
|
190 |
G1B |
R¾ |
None |
82 |
18.5 | 83.2 | |
|
195 |
G1B |
R¾ |
None |
82 |
18.5 | 83.2 | |
| 25 | 110 | G5/4B | R1B | None | 82 | 21.8 | 87.2 |
| 150 | G5/4B | R1B | None | 82 | 21.8 | 87.2 | |
| 200 | G5/4B | R1B | None | 82 | 21.8 | 87.2 | |
| 225 | G5/4B | R1B | None | 82 | 21.8 | 87.2 | |
| 260 | G5/4B | R1B | None | 82 | 21.8 | 87.2 |
Why Choose Us
1. Industry 4.0 intelligent production system
Our production base is equipped with fully automatic machining centers to achieve micrometer level machining accuracy. Real time monitoring of the entire production process, reducing delivery time by 40%. The annual production scale of the smart production base can reach 8 million units, supporting global scale order demand.
2. Global Compliance Certification Matrix
Metrological certification: EU MID, OIML
Safety certification: ATEX
Management System: ISO 9001 (Quality), ISO 14001 (Environment), ISO 45001 (Occupational Health and Safety)
3. Deep customized engineering services
OEM/ODM Solution: Supports full customization of dynamic range (R400-R800), communication protocol (M-Bus/Modbus/LoRaWAN), and shell material (brass/engineering plastic/316L stainless steel)
Scenario based variant development: 12 specialized designs including explosion-proof (ATEX Zone 1), extremely cold (-26 ℃), and corrosion-resistant (etc.)
4. Zero defect quality ecosystem
Material selection: strict procurement of raw materials such as brass and plastic, 100% screening of raw materials
Process control: Implement Six Sigma management, 16 testing processes (including 48 hour accelerated aging and 5000 pressure cycle tests)
Ultimate verification: Each instrument is calibrated by a national level metrology standard device (accuracy ± 0.2%), with a factory qualification rate of 99.98%
Life cycle guarantee: providing industry-leading 12 year ultra long warranty with a failure rate of less than 0.01%
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