Performance characteristics
Safe and reliable: using NB IoT/GPRS communication module, patch SIM card, and utilizing the operator's public network for communication transmission, safe and reliable;
● Pay as you scan: WeChat code scanning, Alipay code scanning and other functions are supported;
● Data upload: It has the function of custom periodic data reporting, key triggering, and power on data reporting;
● Fault reporting: When magnetic interference, valve, abnormal high flow, low power and other abnormalities occur, the valve will be automatically closed and the fault information will be actively reported to the management system for easy management;
Remote valve control: The valve can be remotely controlled, and in case of emergencies or malicious overdue customers, the valve can be closed remotely;
● Payment and recharging: self-service payment and recharging can be conducted through mobile terminal APP or WeChat official account;
Dual channel recharge: supports two gas purchase recharge methods: IC card recharge and wireless remote recharge;
No need for gas shut-off valve: Two levels of n-day no need for gas shut-off valve function can be set to ensure safe gas use;
● Optional features: Temperature or temperature pressure compensation and tiered billing functions can be added according to requirements.
Technical Parameter
Technical parameters/model | IG1.6S-GI IG1.6S-G |
IG2.5S-GI IG2.5S-G |
IG4S-GI IG4S-G |
IWG2.5S-GI IWG2.5S-G |
|
Nominal flow rate m ³/h | 1.6 | 2.5 | 4 | 2.5 | |
Maximum flow rate m ³/h | 2.5 | 4 | 6 | 6 | |
Minimum flow rate m ³/h | 0.016 | 0.025 | 0.04 | 0.016 | |
Pressure loss Pa | ≤250 | ||||
Working pressure range kPa | 0.5~50 | ||||
Indication error | 0.1qmax≤q≤qmax | ±1.5% | |||
qmin≤0.1qmax | ±3% | ||||
accuracy class | Level 1.5 | ||||
working voltage | External DC6V (4 cells of 5 # alkaline batteries), built-in 3.6V lithium battery | ||||
BATTERY LIFE | Depending on the data reporting cycle, once a day can last for more than 1 year | ||||
Data collection method | Double pulse or photoelectric direct reading | ||||
Quiescent current | <30μA | ||||
Supporting frequency bands | GSM/NB IoT Public Network Authorized Frequency Bands | ||||
Communication Distance | GSM/NB IoT network coverage | ||||
communication cycle | Customizable hours, days, and months | ||||
Environmental parameters | Working temperature: -10 ℃~+40 ℃, storage temperature: -20 ℃~+60 ℃, working humidity: 5%~95%, no condensation |
optional field | Specific configuration | notes |
Sampling method | Double reed switch pulse, photoelectric direct reading counter | Can be accurately measured |
Compensation measurement | Mechanical temperature compensation, temperature and pressure compensation | Realize temperature or temperature pressure measurement compensation |
Anti reverse function | Both steel and aluminum shell watches can be equipped with anti backflow devices as an option | Realizing gas meter reverse installation and suffocating |
Leakage alarm | Optional external gas leak alarm | Realize gas leak alarm and automatic valve closing |
measuring method | Gas volume measurement and amount measurement can be switched | Satisfy different application needs, with adjustable amount measurement and pricing |
External dimensions

A | 90±0.50 110±0.50 130±0.50 | |
B | M26×1.5-6g M30×2-6g G¾B G1B | G1¼B |
C | 196 | 188 |

A | 130±0.50 110±0.50 |
B | M30×2 M26×1.5 |