Main Features
-Wide range ratio:the range ratio can be up to 400:1.
-TC/TPC:temperature compensation or pressure and temperature
compensation optional.
-Size:compact design,easy to install.
-Dual lithium battery:replaceable battery with transmission of low battery
and battery-removal alarms;second internal battery for back-up whe the
replaceable battery is removed.
-Safety:high flow/temperature/pressure alarm,air detection alarm,cover
opened alarm.
-History record:hour record,day record,month record.
-Comminication modules:NB-IoT/LTE-M.
-Optical port:IEC62056-21.
Dimensions

Specifications
| Tech Specs | G6 | G10 | G10W | G16 | G25 | G25W |
| Qmax(m³/h) | 10 | 16 | 16 | 25 | 40 | 40 |
| Qmin(m³/h) | 0.06 | 0.1 | 0.06 | 0.16 | 0.25 | 0.16 |
| Qt(m³/h) | 1.0 | 1.6 | 1.0 | 2.5 | 4.0 | 2.5 |
| Max Operating Pressure | 30kPa | |||||
| Accuracy | 1.5 | |||||
| Operating Temperature | -25℃~55℃ | |||||
| Ingress Protection | IP65 | |||||
| Explosion Protection | Ex ib IIB T3 GB | |||||
| Gas Type | Natural gas H,L,E | |||||
| Communication Module | NB-IoT/LTE-M | |||||
| Optical Port | IEC 62056-21 | |||||
| Battery Life | 10years | |||||
| Hub Center-to Center | 180mm | |||||
| Hub Size | G2" | |||||