The NB-IoT Non-Magnetic Metering Module is designed for smart water meter applications, combining high-accuracy non-magnetic metering with wide-area NB-IoT communication.
It supports non-magnetic, reed, optical and Hall sensing technologies. For small-diameter water meters, the module supports 1 L metering resolution and a reading accuracy above 99.9%, while enabling remote data transmission through NB-IoT networks.
The module provides scheduled reporting, data retransmission, historical data storage, alarm functions, infrared local maintenance, remote parameter configuration and firmware upgrade, making it suitable for large-scale AMR/AMI smart water metering projects.
Supported Bands
B1 / B2 / B3 / B4 / B5 / B8 / B12 / B13 / B17 / B18 / B19 / B20 / B25 / B28 / B66 / B70 / B85
Receiver Sensitivity
-116 dBm
Transmit Power
+23 dBm ±2 dB
Operating Voltage
2.7–3.9 V (Typical: 3.6 V)
Reporting Interval
Once per day by default; configurable
Battery Life
6 years at the default reporting interval*
Protocol / SIM
UDP / TCP / PING / LWM2M / SNTP / CoAP / CoAPS / HTTP / HTTPS / MQTT / MQTTS / SSL / TLS
Sensor Inputs
Reed switch / Hall / pulse / photoelectric / non-magnetic
Data Interfaces
Pulse / TTL UART
Signal Connections
T / VCC / GND / DIR / P
Operating Temperature
-15 to +55 °C
Storage Temperature
-40 to +90 °C
Temperature Monitoring
Built-in; data available for reporting
Data Security
AES-128 encryption; customizable key
Local Maintenance
Infrared communication
Reported Data
Flow, billing, valve status, time, battery, signal and IMSI
Data Storage
18 months monthly; 31 days daily; 1 day hourly (24 records)
Retransmission
Up to 31 days
Fault Records
Up to 50 records
Monitoring & Alarms
Low voltage, magnetic interference*, valve fault, module separation, reverse flow and over-flow
