LoRaWAN Intelligent Wireless Water Flow Meter with 15-25mm Diameter and 10-Liter Accuracy for Smart Water Management
LoRaWAN IoT water meter integrates water meter base, electric ball valve, magnetoresistive sensor, MCU, wireless communication module, and control circuitry. Featuring mechanical and electrical separation design with high-capacity lithium battery pack for reliable power supply, this intelligent water management solution enables long-term stable operation for data acquisition, valve control, and wireless transmission.
Utilizing LoRaWAN wireless communication with spread spectrum technology, the meter automatically uploads user water consumption data (default once daily) to the LoRaWAN gateway, which then transmits to the system data center via LTE 4G network or Ethernet. The system offers extended communication range, high capacity, easy installation, and extended service life.
- Split structure design with independent electronic unit
- Non-contact full-electronic detection with 10-liter metering accuracy
- Key wake-up function with long-press for remote data transmission
- Infrared communication interface for parameter configuration
- Comprehensive alarm functions for battery voltage, valve status, flow anomalies, and metering failures
- Scheduled data collection and automatic upload with platform command execution
- Automatic reporting mode switching between daily and monthly based on signal conditions
- Low power design with sleep current under 10μA using 3.6V lithium battery pack
| Parameter | Specification |
|---|---|
| Flow Characteristics | Complies with GB/T 778.1~3-2007 standard, Accuracy Class 2 |
| Nominal Diameter (mm) | 15 | 20 | 25 |
| Overload Flow Q4 (m³/h) | 3.1 | 5.0 | 7.8 |
| Common Flow Q3 (m³/h) | 2.5 | 4.0 | 6.3 |
| Maximum Allowable Error | High area (Q2≤Q≤Q4): ±2%, Low area (Q1≤Q |
| Range Ratio | Q2/Q1=1.6, Q4/Q3=1.25 |
| Pressure Loss Level | △p≤0.063MPa |
| Maximum Water Pressure | ≤1.2MPa |
| Operating Environment | 0~+45℃ (cold water), 0~+90℃ (hot water), 0~95%RH |
| Communication Mode | LoRaWAN: CN470, RU864, IN865, EU868, US/AU915, KR920, AS923_1/2/3/4, Custom Channels |
| Operating Voltage | 2.7~3.6V |
| Quiescent Current | |
| Communication Current | Data collection: |
To prevent excessive battery drain from repeated manual triggering, the water meter implements a 5-minute interval between key-triggered transmissions and limits to 8 manual transmissions per day. Infrared communication settings remain unaffected by these restrictions.
| Model | Diameter (mm) | L (mm) | B (mm) | H (mm) | Junction Pipe | Nut |
|---|---|---|---|---|---|---|
| LXSY-15 | 15 | 165 | 90 | 106 | R1/2 | G3/4 |
| LXSY-20 | 20 | 195 | 90 | 108 | R3/4 | G1 |
| LXSY-25 | 25 | 225 | 96 | 130 | R1 | G11/4 |
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