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Vaisala Indigo 500 Series Transmitter

Vaisala Indigo 500 is an industrial-grade, robust transmitter with multi-parameter support for stand-alone smart probes. The plug-and-play probes are easy to install and remove for calibration. Vaisala Indigo 500 can display measurements on the spot as well as transmit them to automation systems through analogue signals, relays, or Modbus TCP/IP protocol.

Vaisala Indigo 500 series offers many additional features to the standalone probes. The touchscreen display provides local data visualization and easy access to probe configuration. The transmitter also extends the options for connectivity, supply voltage and wiring. It also provides mechanical support when wall-mount probe installation is preferred.​ Rugged IP66- and NEMA4-rated  metal enclosure ensures reliable performance even in the harshest conditions.


There are 2 versions of the Vaisala Indigo 500 Transmitter family:

  • Vaisala Indigo 510 Transmitter
    • Single Probe input with 2x analogue outputs (eg RH&T from one probe)
  • Vaisala Indigo 520 Transmitter
    • Allows upto 2x probe inputs along with 4x analogue outputs and 2 relays switches
    • Note that the Indigo 520 would be required, for example, with the heated HMP7 sensor and separate TMP1 temperature probe


Vaisala Indigo 500 offers the following probe options:

  • Humidity and temperature probes: HMP1, HMP3, HMP4, HMP5, HMP7, HMP8, HMP9, and TMP1
  • Dew point probes: DMP5, DMP6, DMP7, DMP8
  • CO2 probes: GMP251, GMP252
  • Vaporized hydrogen peroxide probes: HPP271, HPP272
  • MMP8 moisture in oil probe


Vaisala Indigo 500 Series Transmitters Benefits and Specs:

  • Graphical, touch screen interface
  • Extended power supply options:
    • Protected extra-low voltage (PELV) version: 15 … 35 VDC, 24 VAC ±20%
    • Main power version: 100 … 240 VAC 50/60 Hz
    • Power over Ethernet (PoE) version: 50 VAC PoE+
  • Analogue and digital outputs
  • Rugged design with metal enclosure:  IP66 and NEMA4
  • Display: touchscreen gives easy access to probe data
  • Plug-and-play probe connection to Vaisala’s compatible probes


Video: Replacing Vaisala HMT330 with Indigo 520 Transmitter


Fluidic are a recognised partner of Vaisala CEN (Industrial division) for Scotland and the North of England.  Our instrumentation engineers are product trained and able to help with instrument selection within the full range of Vaisala instrumentation.  Please call either office for more information (Glasgow 0141 641 5920,  Warrington 01925 572401).


  • Download Vaisala Indigo Series 510 Datasheet
  • Download Vaisala Indigo Series 520 Datasheet
  • Download Vaisala Indigo 500 User Manual
  • Download Vaisala Indigo 500 Quick Start Guide
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