Overview
VIEWSHINE U-GR4 is a high-precision ultrasonic gas meter with IoT connectivity and an integrated shut-off valve. Designed for both residential and commercial use, it offers a wide measuring range of 0.016 to 6 m³/h, no moving parts, and full electronic measurement - making it a reliable choice for natural gas metering.
With real-time environmental compensation, it delivers stable performance even in extreme conditions. The wear-free electronic design lowers maintenance costs. As an IoT-ready smart gas meter, it supports cloud monitoring, predictive analytics, and remote safety control for automated utility management.
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
10. EN14236:2018 & OIML R137 & WELMEC 7.2
Technical Parameters
|
Type |
GR |
|||
|
Parameters |
Unit |
G1.6 |
G2.5 |
G4 |
|
Nominal Measured Flow Qnom |
m³/h |
1.6 |
2.5 |
1.6/2.5/4.0 |
|
Maximum Measured Flow Qmax |
m³/h |
2.5 |
4 |
6.0 |
|
MinimumMeasured Flow Qmin |
m³/h |
0.016 |
0.025 |
0.040 |
|
Lowest Flow Rate Qstart |
m³/h |
0.004 |
||
|
Error - Qmin ≤ Q < 0,1Qmax - 0,1Qmax ≤ Q ≤ Qmax |
% |
± 3.0 ± 1.5 |
||
|
Transitional Flow Rate Qt |
m³/h |
0.1Qmax |
||
|
Maximum Working Pressure Pmax |
kPa |
≤50 |
||
|
Pressure Loss at Qmax |
Pa |
≤200 |
||
|
Counter Capacity |
m³ |
999999,999 |
||
|
Minimum Counting Division |
m³ |
0,0001 |
||
|
Ambient Temperature tm |
°С |
-25 to +55 |
||
|
Storage Temperature |
°С |
-30 to 60 |
||
|
Humidity |
% |
≤95% |
||
|
Power Supply |
|
Li battery |
||
|
In- and Outlet Pipe Screw |
Inch |
G11/4 (ISO228) |
||
|
Distance Between Inlet and Outlet |
mm |
110 |
||
|
Protection Level |
Class |
IP65 |
||
|
Mass, Not More Than |
kg |
2.5 |
||
|
Overall Dimensions |
mm |
207*113*142 |
||
|
Medium |
|
NG |
||
|
Mechanical Environment |
Class |
M1 |
||
|
Electronical Environment |
Class |
E2 |
||
|
Design Lifetime |
Year |
15 |
||
|
Metrological Battery Lifetime |
Year |
10 |
||
|
Communication |
|
Nb-IoT / GPRS /4G/LoRaWAN |
||
|
Material of Meter Body |
|
Die-casting Aluminum |
||
|
Material of Case |
|
PVC |
||
|
Material of Valve |
|
POM |
||
Dimension
Why Choose Us
1. Extensive Industry Expertise
VIEWSHINE is a trusted OEM manufacturer and B2B supplier of high-precision ultrasonic gas meters, smart water meters, and IoT metering solutions - serving gas utilities, water utilities, and industrial clients worldwide.
2. Skilled Professionals
Our in-house R&D and QC teams ensure every meter meets MID, OIML, and CE standards - delivering reliability you can count on.
3. Dedicated B2B Customer Support
From technical consultation to after-sales service, we offer dedicated support for distributors and utility partners to ensure seamless integration.
4. Competitive Pricing
As a direct factory, we provide cost-effective, high-quality metering solutions with no middlemen - just value for your budget.
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