MEI Group's 4G connected adverse pressure point monitor is a specialized monitoring device for water supply systems, designed to measure pressure at locations far from pumping stations or at points at risk of low or high pressure. The device uses a 4–20mA or 0–10V pressure sensor, high resolution, to help continuously monitor pressure and send instant warnings when detecting pressure drops, pressure shocks or abnormal fluctuations on the pipeline.

In addition to pressure, the device also measures source voltage, helps monitor power outages or voltage drops at the scene; measure at the same time temperature and humidity inside the cabinet to detect overheating, moisture condensation or water ingress. All data is transmitted MEI ECO through modules Industrial 4G, supports MQTT/HTTP and automatic connection recovery mechanism, ensuring the device operates stably even in areas without LAN/WiFi network.

The device optimizes energy, supports deep sleep mode, and is suitable for using DC power or mini solar for outdoor locations. MEI ECO provides graphs, alarms, history and management of multiple monitoring points, helping water utilities operate their systems efficiently and reduce the risk of leaks.

MEI Group's 4G connected adverse pressure point monitor is a specialized monitoring device for urban water supply systems, pumping stations and distribution networks that require accurate pressure monitoring at remote locations or points at risk of low pressure. Equipment used industrial 4G module (SIM7600/A7677) to transmit data directly to the platform MEI ECO, ensuring stable connection in any location without LAN/WiFi network.

1. Measurement function

1.1 Measure critical point pressure

• Sensor support pressure 4–20mA or 0–10V.

• High resolution 16–24 bit depending on ADC version.

• Record pressure changes in real time.

• Immediate warning when:

  • Pressure falls too low → risk of pipe leaks/bursts.

  • Increased pressure → risk of pressure shock.

1.2 Measure the source voltage

• Monitor voltage 9–36VDC or AC via voltage measurement module.

• Warning of power failure, voltage drop, abnormal power fluctuations.

• Useful for pumping stations and outdoor electrical boxes.

1.3 Measure device temperature and humidity

• Monitor environmental temperature and humidity inside the cabinet.

• Detect condition:

  • The box is too hot.

  • Water intrusion.

  • High humidity causes condensation.

2. 4G connection and communication

• Use 4G LTE Cat-1/Cat-M suitable for Vietnam coverage area.

• Send data periodically or by event every 5–300 seconds.

• Support:

  • MQTT(S)

  • HTTP/HTTPS

• Automatically reconnect, automatically resend data when the network is stable.

• Optimize bandwidth to save SIM costs.

3. Save energy

• Suitable for AC/DC power or pin + Solar mini.

• Mode:

  • Deep Sleep when there is no event.

  • Wake-up when detecting pressure changes or warnings.

• Optimize energy for 24/7 outdoor operations.

4. MEI ECO feature

• Real-time pressure graph.

• Historical log of pressure - voltage - temperature - humidity.

• Push/SMS/email alerts when problems occur.

• Overview dashboard for water supply system.

• Multi-point – multi-route management.

• OTA firmware for remote device.

5. Application

• Monitor pressure at critical point at the end of the route.

• Urban water supply systems, residential areas, industrial parks.

• Pumping station level 1 - level 2 - DMA.

• Anti-leak pressure monitoring/NRW.