LTE Cat.M1/NB2 Data Logger for Smart Water Metering

Our 3rd generation low-power cellular data logger with a built-in cellular modem for smart water and gas metering.

Automated water meter readings with customizable breakdowns, leak detection and prevention. Detection of water leakages to avoid flooding, non-revenue water for more accurate billing, optimization of operating costs, and improvement of water supply reliability.

Remote data collection via the pulse output (S0) or M-bus. Data is sent through NB-IoT cellular networks (as LTE Cat.NB / Cat.M) to a central server or HES (Head-end System).

This smart water metering device has a standalone and intermittent operation.

It reads and counts the consumption data (pulse signals or M-Bus data) of the connected meters in „sleep mode” and saves the data to the local storage. Then it wakes up at pre-configured intervals to transmit the stored data using MQTT or LwM2M protocol, plain TCP/IP packets or JSON, XML format.

The device has an IP67 waterproof housing. The installation is easy, which is supported by operation LED lights to indicate proper functioning.

Optionally, expansion boards can be ordered to extend capabilities (e.g. more inputs, M-Bus connection, etc).

The modem has a special internal battery which provides energy for 5 to 10 years.

With the over-the-air (OTA) protocol, the device can be configured and the firmware can be updated remotely without the need to send experts to the field.

Main Features

LTE Cat.M / Cat.NB / 450MHz cellular module
Continuous counting of pulse signals (S0)
M-Bus data collection (order option)
IP67 waterproof design, mountable
External antenna with coaxial cable
Operation LEDs for installation
Internal battery for more than 5 years of lifetime
Scheduled data sending via LTE Cat.M / Cat.NB / Cat.M 450MHz network
Data sending (protocol and format by user selection: MQTT, LwM2M, TCP/IP, etc.)
Safe local storage of consumption data, TLS certificate
Alert notifications from: tamper switch, battery status, Min/Max flow unit per time (leak, excessive flow / fault), acceleration/movement (optional theft prevention)
WM-E Term configuration software

Application

Utility companies
Energy providers
Smart metering (water, gas, heat, electricity)
Smart cities

Design

IP67 protected, mountable enclosure (by casing pedestal)
Optional add-on boards (more inputs, Mbus feature)
LTE Cat.M / Cat.NB / 450MHz cellular module
Internal micro SIM (3FF)

Connections

Universal connection for energy meters, sensors (input for pulse signal capable meters)
Wired M-Bus meters (optional)
Internal serial connection (for local configuration)
DC powered internal battery (external DC power usage option)
External antenna on coaxial cable – leaded out from the product enclosure

Operation

Autonomous, automated and intermittent operation
Data storage and sending intervals can be pre-configured
Messages can be sent using MQTT or LwM2M protocols, plain TCP/IP packets or JSON, XML format

Security

Safe local storage of consumption data (AES-256 security hash algorythm)
TLS certificate
Alert notifications from: tamper switch, battery status, Min/Max flow unit per time (leak, excessive flow / fault), acceleration/movement (optional theft prevention)