Overview
VIEWSHINE U-GR4 is a smart ultrasonic gas meter engineered for residential and light commercial applications. It delivers precise measurement across a 0.016–6 m³/h flow range, with real‑time temperature and pressure compensation ensuring consistent accuracy under variable conditions. The fully electronic design eliminates mechanical wear, providing reliable performance with minimal upkeep.
Integrated with an automatic shut‑off valve and IoT connectivity, the U-GR4 supports remote monitoring, safety control, and data-driven predictive management. Communication options include GPRS, 4G, NB‑IoT, and LoRaWAN, while compliance with EN14236, OIML R137, and WELMEC 7.2 guarantees international standards alignment. Built with IP65‑rated steel housing and a 12‑year design life, it is ready for smart home and utility applications.
Main Features
1. Compact size
2. Reliable stability
3. Remote management
4. Accurate measurement
5. Intelligent alarm system
6. Wide measuring range ratio
7. Strong anti-interference ability
8. Multiple communication modes
9. Real-time temperature & pressure compensation
Technical Parameters
|
Parameters |
Unit |
G1.6 |
G2.5 |
G4 |
G4.0+ |
|
|
Maximum Flowrate (Qmax) |
m³/h |
2.5 |
4 |
6 |
6 |
|
|
Minimum Flowrate (Qmin) |
m³/h |
0.016 |
0.025 |
0.040 |
0.016 |
|
|
Start Flowrate (Qstart) |
m³/h |
0.003 |
0.004 |
|||
|
MPE |
Qmin≤Q<0.1Qmax |
% |
±3.0 |
|||
|
0.1Qmax≤Q≤Qmax |
±1.5 |
|||||
|
Maximum Working Pressure (Pmax) |
kPa |
≤50 |
||||
|
Maximum Pressure Absorption |
Pa |
≤200 |
||||
|
Gas Temperature Range (tg) |
℃ |
-25 to +55 |
||||
|
Storage Temperature |
℃ |
-30 to +60 |
||||
|
Humidity |
% |
≤95 |
||||
|
Battery Information |
V |
Measurement: 3.6V lithium battery |
||||
|
Thread |
Inch |
G1¼" |
||||
|
Connection Centers |
mm |
110 |
||||
|
Protection Grade |
Class |
IP65 |
||||
|
Overall Dimensions |
mm |
207*113*142 |
||||
|
Medium |
mm |
NG |
||||
|
Mechanical Environment |
Class |
M1 |
||||
|
Electronical Environment |
Class |
E2 |
||||
|
Communication |
/ |
GPRS/4G/NB-IoT/LoRaWAN |
||||
|
Case Material |
/ |
Steel |
||||
Dimension
Why Choose Us
1. Industry Leadership
VIEWSHINE supplies high‑accuracy ultrasonic gas meters, smart water meters, and IoT metering platforms to municipal utilities, industrial operators, and commercial partners worldwide. We also offer OEM and private‑label programs.
2. Engineering Excellence
Our R&D and QA teams ensure every meter meets MID, OIML, and CE standards - with batch‑to‑batch consistency, long‑term stability, and full traceability.
3. Partner‑Centric Support
We support distributors, system integrators, and utility partners from specification consultation and sample validation to logistics and after‑sales service - making integration smooth and hassle‑free.
4. Transparent Factory Pricing
As a direct manufacturer, we cut out intermediaries and offer volume‑based pricing without compromising quality. Every quote reflects genuine factory value.
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