QK7000 Series Ultrasonic NB-IoT Gas Meter
Ultrasonic transit-time smart meter G1.6~G25 with NB-IoT remote reading and valve control
Technical Parameters
| Meter Model | G1.6 / G2.5 / G4 / G6 / G10 / G16 / G25 |
|---|---|
| Metering Principle | Ultrasonic transit-time, no moving parts |
| Max. Flow Rate | 2.5 ~ 25 m³/h |
| Max. Working Pressure | 20 kPa residential · 15 kPa industrial & commercial |
| Accuracy Class | Class 1.5 (Class 1.0 on request) |
| Working Temperature | -25°C ~ +55°C |
| Connection | M30 × 2 residential · G1 1/4 ~ G2 1/2 commercial |
| Communication | NB-IoT, local infrared and Bluetooth |
| Protection / Explosion-proof | IP65 · Ex ia IIB T3 Gb |
| Data Retention | 10 years of hourly, daily and monthly records |
Product Datasheet
QK7000 Series Ultrasonic NB-IoT Gas Meter — full technical datasheet
PDF Open Datasheet 61 KB
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Key Features
- Dual-MCU design with independent metering and communication power supplies
- Built-in motor valve enables remote shut-off and alarm-triggered closure
- Cryptographic SM algorithms secure local storage and NB-IoT transmission
- Supports tiered pricing, prepaid and postpaid billing modes
- No moving parts - no mechanical wear, stable long-term accuracy