Overview

The U‑GR3 smart ultrasonic gas meter delivers precise, maintenance‑free measurement across a wide 0.016–10 m³/h flow range - all in a compact form factor built for tight spaces. With IoT‑enabled real‑time monitoring, it detects leaks, pressure anomalies, and tampering as they happen. When risks are detected, the built‑in valve shuts off automatically and pushes instant alerts to the cloud, enabling rapid response without manual intervention.
Main Features
1. Built-in shut-off valve for automated safety response
2. Meter removal platform for easy maintenance
3. Gas leak monitoring with instant alerts
4. Wide measuring range (0.016–10 m³/h)
5. High accuracy with temperature & pressure compensation
6. Long-term data storage for usage tracking

Technical Parameters
|
Parameters |
Unit |
G1.6 |
G2.5 |
G4.0 |
G6.0 |
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|
Maximum Flowrate (Qmax) |
m³/h |
2.5 |
4.0 |
6.0 |
10.0 |
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|
Minimum Flowrate (Qmin) |
m³/h |
0.016 |
0.025 |
0.040 |
0.060 |
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|
Start Flowrate (Qstart) |
m³/h |
0.003 |
0.004 |
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|
MPE |
Qmin ≤ Q < 0.1 Qmax |
% |
± 3.0 |
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|
0.1 Qmax ≤ Q ≤ Qmax |
± 1.5 |
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|
Maximum Working Pressure (Pmax) |
kPa |
15 |
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|
Maximum Pressure Absorption |
Pa |
≤200 |
≤250 |
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|
Gas Temperature Range (tg) |
℃ |
-25 to +55 |
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|
Ambient Temperature (tm) |
℃ |
-30 to +60 |
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|
Humidity |
% |
≤95 |
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|
Battery Information |
V |
Measurement: 3.6 V lithium battery |
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|
Thread |
Inch |
G3/4", G1" |
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|
Protection Grade |
Class |
IP65 |
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|
Overall Dimensions |
mm |
252 * 100 * 98 |
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|
Medium |
mm |
NG |
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|
Mechanical Environment |
Class |
M1 |
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|
Electronic Environment |
Class |
E2 |
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|
Communication |
/ |
GPRS / LoRaWAN / 4G |
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|
Case Material |
/ |
Steel |
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Dimension

Why Choose Us
1. Market Expertise
VIEWSHINE delivers ultrasonic gas and smart water metering solutions to utilities, industrial plants, and commercial clients worldwide. Our global experience enables OEM-ready or custom designs that meet regional standards and application-specific needs.
2. Engineering Capability
From design validation to production, our R&D and QA teams apply strict testing at every stage. We ensure full material traceability and batch-to-batch consistency across all product lines - gas meters, water meters, and IoT-enabled devices.
3. Partner-Centric Support
We provide end-to-end assistance - from technical consultation and sampling to logistics and after-sales - with fast turnaround and flexible order handling.
4. Factory-Direct Value
As an ISO-certified manufacturer, we offer competitive factory pricing on our full portfolio. No intermediaries, no hidden fees - just reliable quality at transparent costs.
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