Groundwater Monitoring Equipment
Data Logger

Data Logger

LCD Type Data Logger
Model : STU
STU collects and saves several data (ex: water quality data) and transmits it to a remote server via CDMA/GSM data communication. This model basically has 3.2” QVGS(4008240) Color TFT-LCD and keypad for improved convenience and functionality.
STU is designed with durable and stable circuit to fit the outside environment and also can be operated with only built-in battery for the long term.

  • Application

    ① Environment & Disaster Filed
    ② Engineering & Architecture Field
    ③ Other area for multi-purpose data logger

  • Features

    · Wide sensor compatibility (Digital/Analog)
    · Durable and stable circuit design
    · Ultra low power consumption by the digital electric power control technology
    · Reliable ESD & built-in Surge Protector
    · Battery voltage monitoring & Event Alarm by SMS
    · Multichannel connect supply(Mobile/Web)
    · Wireless Remote Firmware Upgrade
    · Dust & Water Proof [IP 68 Grade]


Model Name STU
Processor High performance, Low power consumption ARM Cortex M3
Dimensions(exclude connector) 196mm(H)x152mm(W)x46mm(D)
Supply Voltage DC 12Volt
Supply Current ≤50mA @ LCD active, exclude CDMA modem, ≤60mA @sleep mode
Memory Micro SD up to 4GByte / internal serial flash up to 4MByte
Wireless Communication CDMA or WCDMA or 400MHz band RF modem(option)
Display & Control 400x240 QVGA Color TFT-LCD & Keypad
Built-in Surge Protection Devices each port, 3 stage
Inner Battery 14.4V Lithium 19Ah
Operating condition Temp.-20~55˚C, R.H. ≤99%(Non-Condensing)

External port

USB Communication Serical comport mode / mass storage mode
Serial Communication RS-485 or RS-232C, SDI-12, Opto-isolated 2-Wire TTL(optional)
Antenna SMA, CDMA or RF modem
External DC Power Solar panel or External Battery or External DC power
Digital input High impedance
Digital output Power, Open Collector, 3.3V TTL