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Datalogger DL-03

manufacturer: LASI

Model: DL-03

Datalogger DL-03 is a premium highly integrated data logger that includes all basic components of an environmental monitoring station cabinet, including the datalogger, charger and battery, Wi-Fi/Bluetooth/4G/LORA modules. Thanks to this outstanding feature, it provides many notable capabilities, such as:

  • A powerful microcontroller with 3 cores, including 2 main cores and 1 low-power core, enabling multitasking processing and optimized power consumption.
  • Fully equipped with standard datalogger features such as an independent high-accuracy RTC clock and an external SD card for backup data storage.
  • Full support for common sensor interfaces, including RS232/RS485 Modbus, 24-bit analog input, 4–20 mA, 0–5 V, 0–10 V, SDI-12, high-speed DI ports, relay control, and expandable device communication via I²C.
  • Integrated Wi-Fi, GSM/2G/4G, and Bluetooth communication.
  • Integrated battery charging circuit and smart lithium battery, allowing the datalogger to operate for 45–60 days in the event of main power failure.
  • Simple parameter configuration via Wi-Fi AP, fully integrated with the IoT platform server or capable of direct connection to the customer’s server, providing comprehensive server access.
  • Automatic data retransmission when the communication connection is interrupted, or data retrieval from the memory card.
  • Low power consumption and outstanding service life of up to 10 years, thanks to the station’s total power consumption being reducible to 20–40 mW.
CONTENT SPECIFICATIONS
Microcontroller 01 Dual Core 32bit 240MHz and 01 Ultralow Core, 448KB ROM,520KB SRAM, 16 KB SRAM RTC, 16MB FLASK
Memory

01 SD card slot, default 4 GB SD card, supporting up to 32 GB. Data can be retrieved from the memory card
Real-time clock Independent RTC with second-level accuracy and external lithium battery
Independent RTC with second-level accuracy and external lithium battery
  • GSM/2G/4G LTE: 01 SIM slot, compatible with mobile network SIM cards currently available in Vietnam
  • LTE data rate: up to 10 Mbps downlink, 5 Mbps uplink
  • Automatic system reset to prevent SIM/module hang-up, or reset via software
  • Wi-Fi: 802.11 b/g/n/e
  • Bluetooth: BR/EDR & BLE v4.2, optional
  • LoRa, optional
  • Supplied with SMS/2G/3G/4G antenna
Interfaces
  • 01 RS232/RS485 Modbus port
  • 01 digital input DI: maximum speed 10 kHz
  • 01 relay output 12 V: controls loads up to 30 VDC / 220 V – 3 A
  • 04 24-bit analog input ports: 4–20 mA, 0–5 V, 0–10 V, 0–20 V
  • 01 SDI-12 port, optional
  • 01 continuous 4 V output port, optional
  • 01 I²C output port
  • 02 isolated controlled power outputs: 24 V and 12 V
  • 182 × 64 graphical LCD and push buttons
Communication protocols
  • MQTT, FTP, HTTP, IoT Platform
  • Firmware update over the internet, OTA
  • Direct connection to the customer’s server and/or to the LASI platform
Datalogger configuration
  • On-site configuration via Wi-Fi AP
  • Remote configuration via LASI platform
Output data format ASCII, CSV
Integrated battery and battery management circuit

Charger:

  • Output capacity: 1.2 A, max. 4.2 V
  • Charging principle: constant charging, automatically switching to float mode when capacity exceeds 90%
  • Smart charging protection: short-circuit, over-current, over-voltage and under-voltage protection for lithium batteries

Battery:

  • 02 lithium batteries, total capacity 6600 mAh, 3.7 V
  • Operating time in case of power/solar panel failure: 40–60 days
Power supply
  • Standard: 5–8 V
  • Expandable via supplied power module: 9–36 VDC / 220 VAC, optional
Enclosure material
  • Material: high-grade aluminium
  • Lightweight, high heat resistance, excellent corrosion resistance
  • Moisture protection for the circuit board
Independent monitoring circuit
  • Monitors the entire system, including microcontroller and SIM module, and automatically resets when the system hangs
  • The device automatically restores its operating status in the event of a fault
Protection
  • E-fuse protection against over-voltage, under-voltage, overload and over-current; TVS surge protection
  • Temperature monitoring for the datalogger system, including circuit board and battery
  • Anti-interference protection for circuit board, power supply and input/output ports
Antenna type Female SMA connector for Wi-Fi and SIM
Mounting method Equipped with mounting brackets
Power consumption Optimized energy-saving function, achieving 20–40 mW for a basic monitoring station, such as rainfall, water level or air monitoring, with a 10-minute measurement cycle
Included accessories 2G/3G/4G or Wi-Fi SMA antenna

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