Data Logger monitors flow and pressure as a device Industrial IoT okay MEI Group designs specifically according to HUEWACO's requirements, using microcontroller STM32 to monitor the water supply network. The device supports reading flow rate Pulse or RS485 Modbus RTU, pressure measurement 4–20 mA, connect 4G LTE and transmit data to the platform MEI ECO qua MQTT. Support system Continuous Mode, Low Power Mode, Offline Data Logging, automatically synchronize data when there is a network, configuration and OTA firmware update Remotely monitor battery voltage and capacity, send Push Notification when flow, pressure or battery exceeds threshold, simultaneously Export Excel and PDF reports on Web/App.
Datalogger DTG.100
Products
Datalogger DTG.100
Data Logger monitors flow and pressure as a device Industrial IoT okay MEI Group designs and develops specifically according to HUEWACO's technical requirements, serves to monitor the water supply network, DMA areas, pumping stations and pressure monitoring points throughout the system. The device is built on a platform STM32, optimized for stable operation in the field, low energy consumption and reliable data transmission under continuous operating conditions.
Support equipment Read flow rate using pulse signal (Pulse) or RS485 Modbus RTU, while integrating the input 4–20 mA to measure pressure with high accuracy. The controller performs cyclic data collection, processing, and timestamping before transmitting it directly to the platform. MEI ECO passed 4G LTE network and protocol MQTT. All parameters such as sampling period, data transfer period, calibration factor, pulse factor, Modbus address and alarm threshold can be remote configuration on Web/App.
Support equipment Continuous Mode and Low Power Mode, suitable for stations using grid power or battery power combined with solar power. The system integrates monitoring function power voltage, battery voltage, battery capacity and charging status, helps monitor power supply status and warns early when battery is low or power is lost.
To ensure data integrity, Data Logger is equipped Offline Data Logging, automatically saves data when 4G connection is lost and fully synchronizes when the network is restored. The device also supports Firmware Over-The-Air (OTA), allows remote software updates without on-site intervention, helping to reduce system maintenance and upgrade costs.
Platform MEI ECO Support real-time monitoring, Dashboard, flow and pressure trend chart, data history management, Push Notification When pressure, flow or battery capacity exceeds the set threshold, support is also provided Export Excel and PDF reports, meets the management, analysis and operation requirements of modern water supply networks of HUEWACO.
TECHNICAL SPECIFICATIONS
Data Logger MEI is the set IoT Data Logger Developed on microcontroller platform STM32, specialized for collecting, processing and transmitting flow and pressure data in water supply systems, pumping stations, DMA and water distribution networks. The device is designed for industrial environments with the ability to operate continuously 24/7, meeting requirements for stability, reliability and low energy consumption.
Support equipment 02 flow rate reading methods, incl Pulse Counter high speed for reading pulse signals from mechanical or electronic clocks and RS485 Modbus RTU Master to communicate with electromagnetic flowmeters, ultrasonic flowmeters and smart water meters. For pressure, support equipment 01 or more Analog Input channels 4–20mA, integrated high-resolution ADC conversion circuit, allows linear calibration (Calibration), digital noise filtering and sensor status monitoring.
Controller used modem 4G LTE to connect directly to the platform MEI ECO through protocol MQTT, supports Auto Reconnect, Keep Alive mechanisms and cyclic or event-based data transmission. Users can remotely configure parameters such as sampling period, data transmission period, calibration coefficient, pulse coefficient, Modbus address, alarm threshold and other operating parameters via Web/App.
Support equipment Continuous Mode for applications requiring continuous monitoring and Low Power Mode, in which the STM32 controls the peripherals and the 4G modem operates periodically to reduce energy consumption, suitable for battery or solar-powered stations. The system integrates monitoring circuits power voltage, battery voltage, battery capacity and charge/discharge status, allowing early warning when battery is low or power is lost.
To ensure data is not lost, Data Logger is integrated Offline Data Logging Use Flash and external memory, automatically save data according to timestamp (Timestamp) when losing Internet connection or server. Once the connection is restored, the device will Synchronize all missing data in the correct chronological order, ensuring database integrity.
Support equipment Firmware Over-The-Air (OTA) online 4G, allowing remote firmware updates, bug fixes, and feature additions without needing to go on site. When discovered Pressure exceeds threshold, flow is abnormal, sensor signal is lost, battery is low or connection is lost, the system will record Alarm Log and send Push Notification to the Web/App platform in real time.
Platform MEI ECO Supports Dashboard, trend charts, data history, Alarm Log, user authorization, simultaneous management of multiple Data Logger and Export Excel, PDF reports, meets the monitoring, analysis and data management requirements for modern water supply systems and technical infrastructure.
Technical specifications are subject to change.
Products for the same solution
Water quality station monitoring device
Water quality monitoring device supports RS485/Modbus RTU sensor and 4–20 mA, 4G connection via HTTP/HTTPS, MQTT, FTP. Data is saved locally for 100 days, automatically transmitted when restoring connection. The device warns of exceeding Min/Max thresholds, sensor errors via application, SMS, calls and contacts. The system integrates an independent HMI, establishes maintenance schedules, forwards data between devices, supports retrieval and configuration according to centralized monitoring data
MLD IoT Gateway
IoT Gateway MLD device developed by MEI GROUP, supports LAN/4G LTE connection, data collection from RS485/Modbus RTU, Modbus TCP, LoRa and other industrial protocols. The device integrates W25Q128 memory or SD Card to store FIFO buffer, ensuring no data loss when connection is lost. Gateway supports SSL/TLS, remote OTA, incident warning and data synchronization to Cloud, SCADA or enterprise server, suitable for water supply, environment, agriculture and smart factories.
Morning Sync - DTG.910
MEI Data Logger is a monitoring device MEI GROUP developed, used for measuring rain, water level, flow, pressure, sluice gate opening and industrial sensors. Equipment used STM32F407, integrated RTC, connect 4G/LoRa, support realtime or save energy. Hardware available 2 RS485, 4 pulse channels, 3 channels 4-20mA, gate TTL, expand communication HMI. Data saved offline 60 days, automatically synchronizes when there is a network. The system also monitors battery, solar charging, cabinet temperature
Sensor Hub - DTG.902
Sensor Hub DTG.902 is an industrial data collector produced by MEI GROUP development, acting as a center for connecting and monitoring sensors 4–20 mA and RS485 Modbus RTU in IoT systems. Equipment used microcontroller STM32F407 High performance, integrated battery voltage and capacity monitoring function, together 01 Digital Output output to output warning or control signals. DTG.902 mode support works continuously or save energy, use source 12 VDC. Flash memory allows data to be saved 90 days
AQUAMONITOR - DTG.300
DTG.300 MEI is a smart industrial Data Logger specialized for monitoring flow, pressure, water level and field sensor signals. The device supports reading data via pulse, RS485 Modbus RTU and analog signals, stores data locally when connection is lost and automatically synchronizes to Web/App when the network restores. DTG.300 allows instant alerts via Web/App, SMS or calls, supports remote configuration and firmware updates. The solution is suitable for the water supply industry, pumping statio
PULSE COUNTER - DTG.1001
Industrial output counting equipment uses power 24 VDC, connection support Wi-Fi or LAN to monitor and manage data in real time via Web App. Designed equipment Sealed dust-proof cover, resistant to electromagnetic interference (EMC/EMI), suitable for operation in factory environments. Supports counting output from pulse signals or sensors, setting target output, statistics by shift, day, month and user authorization. The device integrates memory to store data when the connection is lost and auto
Remote Logger - DTG.901
4G MEI ECO pressure monitoring device Use microcontroller STM32F407, support 1 or 2 pressure measurement channels with the ability to automatically identify sensors. Device that transmits data through 4G, real-time monitoring on Web App, warning based on fixed threshold or time frame. Support operating mode continuously or save energy, integrated solar charging and meets standards IP67. Data is saved locally 200 days (cycle every 15 minutes), support SD Card saves configuration and history, and
Sensor Hub - DTG.515
MEI pressure monitoring equipment uses the platform ESP32, designed for industrial, power supply environments 12VDC and connection WiFi in the ecosystem MEI ECO. The device can read multiple pressure sensors and monitor multiple fault contacts via signals 0-24VDC, and output at the same time relay to control horn, warning light, electric valve or PLC interlock. Data is saved when the network is lost and automatically synchronized when connected again. Support equipment OTA Remote firmware update
Sensor Hub - DTG.900
The 4G MEI ECO Logger is an industrial data collector that supports continuous or energy-efficient operation, suitable for a variety of IoT and SCADA monitoring systems. The device integrates 2 RS485 Modbus RTU ports, 4 4–20 mA inputs, 2 pulse reading inputs and 3 control relay outputs. The logger monitors battery voltage, temperature and humidity inside the device, using the highly accurate RTC DS3231. Data is stored on 16 MB Flash and 256 KB EEPROM when connection is lost. Supports remote conf
ChlorScale - DTG.700
The MEI Chlorine mass monitoring and weighing system is an IoT solution used STM32 to continuously monitor the weight of chlorine cylinders using Loadcell, helps determine the amount of chlorine consumed and warns when the chemical is running out. The system integrates additional sensors temperature, humidity, drying temperature and chlorine gas leak sensor, displays data directly on the screen HMI and transmitted to the platform MEI ECO via protocol MQTT. User-configurable alert,receive thresho
Getway - GT.100
MEI Integrated Gateway is the industrial Gateway set MEI Group research and development, use of resources 12 VDC, integrated 4G LTE, LAN, Wi-Fi and LoRa to collect and transmit data within the ecosystem MEI IoT. Equipment is equipped 01 RS485/Modbus RTU port, 02 Digital Input channels (0–24 VDC), 01 Digital Output channel and sensors temperature, humidity inside to monitor operating status. Gateway supports saving data when connection is lost, automatically synchronizing when the network is rest
Equipment for VIETWATER exhibition
Intelligent pressure monitoring & control system
Leak detection
MEI GROUP's flow measurement equipment set is a low-cost water monitoring solution that uses turbine/Hall sensors to measure pulses and calculate instantaneous flow rate and totalized volume with enough accuracy for residential and light industrial applications. The sensor gives pulse signals according to the water flow speed, the internal datalogger device will process, filter noise and convert to L/min, m³/h and total m³ values. The device integrates an industrial processor, supports 1–2 pulse
Critical-point pressure monitor
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
Hydrological monitoring
System Data Logger monitors MEI Use microcontroller STM32F4, integrated 08 Analog Input channels 4–20 mA, 04 Pulse Counter channels and extended support LoRa to collect data from multiple measurement points. Connected devices 4G LTE, transmit data to the platform MEI ECO via protocol MQTT, support Continuous Mode and Low Power Mode. Built-in memory enabled save data offline for up to 120 days with cycle 15 minutes/time, automatically syncs when the connection is restored. Users can remotely conf
Pressure monitoring with a display
MEI pressure monitoring system is the kit Data Logger IoT Use microcontroller STM32, power supply 9–12VDC, supports pressure sensor connection 4–20 mA for continuous monitoring of water supply systems, pumping stations and industrial pipelines. Data is displayed on the screen, transmitted to the platform MEI ECO through protocol MQTT and supports two operating modes: Continuous Mode and Low Power Mode. Integrated equipment Offline Data Logging, automatically synchronizes data when the connection
MEISync - CTG.1000
Ministry Industrial IoT Gateway do MEI Group research and development, use the platform Raspberry Pi 5 (RAM 8 GB) Integrated display screen, meets real-time data collection, processing and transmission requirements. Communication support devices RS485/Modbus RTU, entrance 4–20 mA, 0–10 V, xung, Digital I/O, same connection Ethernet, Wi-Fi or 4G. Gateway has the ability to store data when connection is lost and automatically synchronize to the server when the network is restored, and supports rem
Office: 585/12/18 National Highway 13, Hiep Binh Ward, Ho Chi Minh City, VietnamR&D office: 121 Street No. 339, Phuoc Long B Ward, City. HCMWorking hours: 08:00 - 17:00 (Monday to Saturday)
Support
- FAQ
- Resources
- Distributor
- Technical Support
MEIGROUP DOWNLOAD
