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This series of smart remote transmission water meters developed based on NB-IoT communication technology. It features low power consumption, long-range communication, strong anti-interference capability, and stable data transmission.
FeaturesResidential
It adopts an ultra-low power pulse sampling method combined with a low-power NB-IoT transmission module. The external split design places the electronic unit in an independent fully sealed cavity with IP68 waterproof performance, while maintaining the structure and accuracy of traditional wet-type water meters.
| Nominal Diameter (DN), mm | 15 | 20 | 25 |
| Permanent Flow Rate (Q3), m³/h | 2.5 | 4 | 4/6.3 |
| Measurement Range (Q3/Q1) | R100 | ||
| Metering Accuracy Class | Class 2 | ||
| Max. Pressure | MAP16 | ||
| Pressure Loss | △P63(≤0.063M Pa) | ||
| Working Temperature | Cold Water Meter (T30): 0.1℃~30℃ Hot Water Meter (T90): 0.1℃~90℃ |
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| Flow Profile Sensitivity | U10/D5 | ||
| Communication Interface | Wireless: NB-IoT / Infrared: 9600bps | ||
| Operating Frequency Band | NB:B3/B5/B8 | ||
| Installation | H | ||
| Environmental Class | Class B | ||
| Electromagnetic Compatibility | Class E1 | ||
| Waterproof Rating | IP68 | ||
| Working Voltage | 3.6V lithium battery (ER26500 / ER34615) | ||
| Case Material | Ductile Iron / Stainless Steel / Copper | ||
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| / | Min. | Typical | Max. | Unit | Remarks |
|---|---|---|---|---|---|
| Network Mode | NB‑IOT (China Mobile/China Telecom/China Unicom) | ||||
| Quiescent Operating Current | 10 | 15 | uA | ||
| Communication Operating Current | 200 | mA | |||
| Battery | +3.6 | V | |||
| Battery Undervoltage Point | 3.2 | 3.3 | V | ||
| Normal Online Voltage | 3.1 | V | |||
| NB Daily Communication Frequency | 1 | times | |||
| Built‑in Battery Service Life | 6 | 10 | years | ER26500M/ER26500+HPC | |
| Frequency | 850 | MHZ | |||
| Transmit Power | 23 | dBm | |||
| Sensitivity | -129 | dBm | |||
| Working Temperature | -10 | 50 | ℃ | ||
| Storage Temperature | -20 | 60 | ℃ | ||
| Humidity | 85% | ||||
| Waterproof Rating | IP68 | ||||
| Model | DN(mm) | L(mm) | L1(mm) | H(mm) | W(mm) | Connecting Thread d | Connecting Thread D |
|---|---|---|---|---|---|---|---|
| LXSY-15 | 15 | 260 | 165 | 150 | 96 | R1/2 | G3/4B |
| LXSY-20 | 20 | 300 | 195 | 150 | 96 | R3/4 | G1B |
| LXSY-25 | 25 | 350 | 225 | 150 | 96 | R1 | G1 1/4B |
Don't hesitate to contact us for customization. Contact Us
