Performance characteristics
Low power consumption: Four alkaline batteries with a lifespan of over 1 year;
One meter, one card: The gas meter corresponds one-to-one with the user card to prevent unauthorized use, and the data is specially encrypted;
● Easy to operate: The gas meter only requires simple settings to use, the software interface is intuitive, and opening an account, purchasing gas, and other operations are simple and easy to use;
Using a genuine wide range membrane gas meter base, the measuring range is wider and the applicable range is wider, which can effectively reduce the measurement loss of small end flow rate;
The battery box adopts a double-layer surrounding waterproof wall design, which can ensure the waterproof sealing of the battery and effectively improve the battery's usage time;
Optional configuration: Mechanical temperature compensation, electronic temperature compensation, electronic pressure compensation, electronic temperature and pressure compensation, and step billing functions can be added according to requirements.
Technical Parameter
Technical parameters/model | IWG6S | IWG10S | IWG16S | IWG25S | IG40S | IG65S | IG100S | |
Nominal flow rate m ³/h | 6 | 10 | 16 | 25 | 40 | 65 | 100 | |
Maximum flow rate m ³/h | 10 | 16 | 25 | 40 | 65 | 100 | 160 | |
Minimum flow rate m ³/h | 0.04 | 0.06 | 0.1 | 0.16 | 0.4 | 0.65 | 1.0 | |
Pressure loss Pa | ≤250 | ≤375 | ≤500 | |||||
Pulse constant m ³/Pulse | 0.1 | 1 | ||||||
Working pressure range kPa | 0.5~30 | |||||||
Indication error | 0.1qmax≤q≤qmax | ±1.5% | ||||||
qmin≤0.1qmax | ±3% | |||||||
working voltage | DC6V (4 cells of 5 # alkaline batteries) | |||||||
BATTERY LIFE | Can be used for more than 1 year under normal conditions | |||||||
Quiescent current | ≤30μA |
External dimensions

Model specifications | IWG6S | IWG10S | IWG16S | IWG25S |
A(mm) | 160±0.50 | 200±0.50 | 240±0.50 | 300±0.50 |
B(mm) | G1¼" | G2" | G2" | M80x3 |
C(mm) | 273.5 | 327.5 | 375.5 | 437 |
D(mm) | 203 | 226 | 249 | 297 |
E(mm) | 85 | 96 | 107 | 132 |
F(mm) | 254.5 | 316 | 355.5 | 438.8 |
M(mm) | R1 | R1 ½ | R1 ½ | R2 |

Model specifications | G6 | G10 | G16 | G25 | G40 | G65 | G100 |
H1(mm) | 571 | 575 | 623 | 685 | 828 | 990 | 990 |
H2(mm) | 273.5 | 327.5 | 375.5 | 437 | 568 | 730 | 730 |
S(mm) | 160 | 200 | 240 | 300 | 320 | 380 | 380 |
L(mm) | 254.5 | 316 | 355.5 | 438.8 | 508 | 635 | 635 |
B(mm) | 192 | 216 | 238 | 285.5 | 420 | 522 | 522 |
D(mm) | 85 | 96 | 107 | 132 | 208 | 258 | 258 |
Table connector thread | G1¼" | G2" | G2" | M80x3 | M80x3 | M120x4 | M120x4 |