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 configuration, data synchronization and OTA Firmware updates via Web App and Mobile App.
Sensor Hub - DTG.900
Products
Sensor Hub - DTG.900
MEI ECO 4G INDUSTRIAL LOGGER
Logger 4G MEI ECO is an industrial data collector designed for remote monitoring and control systems, meeting the requirements of stable operation, high reliability and low energy consumption. The device is suitable for many applications such as monitoring flow, pressure, water level, electricity, temperature, humidity, pumping stations, factories, smart agriculture, HVAC and industrial IoT systems.
Support equipment two operating modes includes Continuous Mode and Energy saving (Low Power Mode). In power saving mode, Logger automatically sleeps and only activates periodically or by events to collect, store and transmit data, extending battery life.
Integrated logger 4G LTE connection, supports data transmission via MQTT and HTTP/HTTPS, allowing completely remote monitoring, control and configuration via Web App and Mobile App.
Regarding hardware, the device is equipped 02 RS485 ports supports Modbus RTU to connect multiple sensors and industrial devices simultaneously. The system does 04 Analog inputs 4–20 mA, 02 high-speed pulse reading inputs for flow meters or pulse sensors, together 03 dry contact relay outputs Serves to control pumps, electric valves, horns or warning lights.
In addition to measurement signals, Logger also monitors battery voltage, temperature and humidity inside the device, helps monitor operating status and warns early when the operating environment is abnormal.
Equipment used RTC DS3231 High accuracy, ensuring data recording time and performing scheduled tasks are always accurate. Data is stored securely on Flash 16 MB when losing Internet connection and automatically syncs to the server when the network is restored. All configuration parameters are saved in EEPROM 256 KB, ensuring no data loss after power failure.
Through the Web App platform, users can configure sampling period, data transmission period, Modbus address, alarm threshold, Relay control, real-time data monitoring, view historical graphs and manage multiple devices remotely.
Logger also supports OTA (Over-The-Air) firmware update over the 4G network, allowing remote software upgrades without the need to be on site, helping to reduce maintenance costs and ensuring devices are always updated with the latest features.
With its industrial design, flexible scalability, stable communications and comprehensive remote management, Logger 4G MEI ECO is a reliable data collection solution for a variety of industrial monitoring and control systems, infrastructure and modern IoT applications.
TECHNICAL SPECIFICATIONS
MEI ECO MULTI-FUNCTIONAL 4G LOGGER
Logger 4G MEI ECO is an Industrial Data Logger designed for remote monitoring and control systems, meeting the requirements of stable operation, high reliability and low energy consumption. The device is suitable for many fields such as water supply, wastewater treatment, energy, smart agriculture, factories, HVAC, cold storage, pumping stations, environmental systems and industrial IoT applications.
Flexible operating mode
Support equipment two operating modes:
Continuous Mode: Real-time data transmission, suitable for systems requiring 24/7 monitoring.
Energy saving (Low Power Mode): the device automatically goes to sleep mode and wakes up only on cycles or events to collect, store, and transmit data, extending battery life.
Communication connection
Connect 4G LTE High speed, stable data transmission.
Protocol support MQTT, HTTP/HTTPS.
Completely remote configuration and management via Web App and Mobile App.
Synchronize data automatically when network connection is restored.
Device communication
02 RS485 ports Standalone, supports Modbus RTU.
Connect multiple devices simultaneously such as:
Flow meter.
Electric clock.
Pressure sensor.
Water level sensor.
Inverter.
PLC controller.
Sensors and other industrial equipment.
Input
04 Analog channels 4–20 mA High precision.
02 Digital Input/Pulse Counter channels High speed to read:
Water meter.
Gas meter.
Energy meter.
Pulse flow sensor.
Monitoring battery voltage in real time.
Monitoring temperature and humidity inside the device, helps evaluate operating conditions and warns when the environment exceeds the threshold.
Control output (Output)
03 dry contact relay outputs, allows control:
Pump.
Electric valve.
Warning lights.
Siren.
Other control devices.
Real-time clock (RTC)
Equipment used DS3231 High accuracy with very low errors, ensuring:
Record data on time.
Precise control scheduling.
Stable operation even when main power is lost thanks to backup battery.
Memory storage
To ensure no data loss under all operating conditions, the device is equipped with:
Flash 16 MB Used to store data when losing Internet connection (Offline Data Logging).
Automatically synchronize all data to the server when the network is restored.
EEPROM 256 KB Saves all configuration parameters, helps the device boot quickly and retains settings after power loss.
Remote management and configuration
Through the platform MEI ECO Web App and Mobile App, users can:
Configure device parameters remotely.
Change the sampling period and data transmission period.
Set Modbus address and baud rate.
Configure alarm thresholds.
Remote control of Relay.
Monitor device operating status in real time.
View data charts and operating history.
Manage multiple devices on the same system.
OTA Firmware Update
Support equipment OTA (Over-The-Air Firmware Update), allows:
Update firmware remotely over 4G network.
No need to go to the field to upgrade.
Reduce maintenance time.
Upgrade features and patch bugs quickly.
Make sure the system always uses the latest software version.
Application
Logger 4G MEI ECO is a flexible IoT and data collection platform, suitable for many monitoring systems such as:
Monitor water flow.
Pipeline pressure monitoring.
Monitor water level.
Energy monitoring.
Monitor temperature and humidity.
Water supply pumping station.
Wastewater treatment system.
HVAC system.
Manufacturing factory.
Cold storage.
Smart agriculture.
Solar energy system.
Warning and remote control system.
Industrial IoT and SCADA projects.
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
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
Datalogger DTG.100
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, configur
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
