portable wireless data logger

Standalone Datalogger GL240

multi-channel WLAN datalogger  


isolated channels datalogger


GL240 Comes Standard with:

  • WLAN capable using optional* WLAN Unit B-568 for remote monitoring and datalogging
  • 4.3 inch wide TFT color LCD screen
  • Three types of power source: AC, DC*, rechargeable battery pack*
  • Extended memory capacity using SD cards (SDHC compatible up to 32GB*)
  • Max sampling interval up to 10ms
  • All channels isolated
  • Analog signal input port
  • Logic/Pulse signal input port
  • Flexible input system for voltage, temp, humidity, pulse and logic signals
  • Smartphone, remote access monitoring
  • *Optional accessories not included

    isolated multichannel data logging

    Max Sampling Interval of up to 10ms

    isolated multichannel data logging

    Supports SDHC (up to 32GB) for reliable long-term measurements

    GL240 series carries two SD memory card slots. Captured data can be stored in GBD (Graphtec Binary Data) or CSV file format.

    SD SDHC datalogger
    (Figures are approximate. File size of captured data is 2GB in GBD or CSV file format on this chart. Sampling interval is limited by the number of channels in use (10ms:1ch, 50ms:5ch, 100ms:10ch)



    wireless wifi datalogging remotely

    GL240 is WLAN ready with optional WLAN Unit B-568

    Wireless LAN option enables wireless communication with other devices. Connects to the GL100-WL remotely when the GL240 is set as an access point. When the GL240 is set as a station, PCs and smart devices will be able to access the WLAN enabled GL240 directly.
    datalogger with wireless LAN

    Combine GL240 and GL100-WL

    GL100-WL can now be connected to the GL240 as a remote sensor using the WLAN feature. You can expand your measurement variety by adding the sensors available on the GL100-WL unit. The measured value by GL100-WL will appear in a single file along with the measurement value from the GL240 main inputs. GL240 will now take in direct information from the GL100-WL unit. GL240 supports 1 unit of the GL100-WL.

    wi-fi remote triggering monitor instrument
    (GL240 supports one unit of the GL100-WL as its remote sensor)



    wireless wifi datalogging remotely
    remote monitor datalogging via smartphone tablet


    wireless wifi datalogging remotely
    remote monitor datalogging via smartphone tablet


    wireless wifi datalogging remotely
    remote data acuisition smartphone tablet


    Advantageous Functions & Features


    FTP Client Function: Captured data is periodically transferred to the FTP server for backup.
    NTP Client Function: The clock on the GL240 is periodically synchronized with the NTP server.
    (The GL240 requires connection to a LAN environment using the Ehternet/WLAN ports for networking functions)



    datalogging various input signals
    datalogger application software

    GL-Connect for Android & iOS
    Supports GL240/GL100

    iOS7 / iOS8
    Datalogger Apple App store software application

    Andorid (4.1-4.4)
    Android software app for datalogging


    GL240 datalogger optional accessories chart



      Download GL240 User Manual   9.5 MB

      Download GL240 Series Brochure/Spec Sheet   7.3 MB

      Shop for GL240 Series Datalogger

      GL240 Pelican Hard Case Now Available

      Contact Graphtec Instruments Sales Team For Dealers

    Go Back to Instruments Main Page

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