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S4-WIFI-ST is a WIFI datalogger stick that uses the RS485 communication method to connect Solis inverters.  This datalogger can monitor up to 10 inverters at the same time, reducing cost drastically compared to a 1 to 1 datalogger. The S4-WIFI-ST is remote control ready, giving the installer and customer full access to their inverter from anywhere in the world.

Solis Wi-Fi Data Logger


  • Sends alarm notifications through text and email

  • Intuitive LED indicator lights displays the operating status

  • One button for instant data transmission and device configuration

  • Simple plug-and play installation makes commissioning quick and easy

Technical Specifications


  • Number of connected inverters ( Inverters must first be daisy-chained with RS485)

  • Data collection intervals

    5 minutes
  • Status indicator

    × 3 LED Indicator Lights
  • Inverter connection interface

    External USB Port
  • Configuration method

    Mobile Application and Website
  • Network communication options

    2.4 GHz Wi-Fi networks (5 GHz Wi-Fi networks are not supported)


  • Operating power consumption
    ≤5 W


  • Operating humidity
    5%-95%, Relative humidity, non-condensing
  • Storage temperature
    -40°F to 158°F (-40 ~ +70°C)
  • Storage humidity
    < 40%
  • Operating altitude
    ≤ 13,123 ft. (4,000 m)
  • Protection degree
    NEMA 4X


  • Installation method
    Externally Insert + Tab Lock
  • Weight
    0.19 lb (84 g)


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