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Compact weather station - NIWA Tier2

A low-cost weather station for gathering accurate weather data. Wind speed and direction, air temperature, relative humidity, barometric pressure and rainfall data can be accessed from a server, via the internet.

The Tier 2 Weather Station is a compact, standalone, designed by NIWA engineers for low cost meteorological monitoring projects.

The Tier2 station records wind speed and direction, air temperature, humidity, barometric pressure and rainfall.

Parameters such as solar radiation, soil temperatures and soil moisture can be added if required.

Vaisala WXT510 weather transmitter

Combines common weather parameters into a single instrument: wind speed and direction, precipitation, barometric pressure, air temperature and relative humidity.

  • Accurate and stable measurement.
  • Compact and light weight.
  • No moving parts.
  • Low power consumption.
  • Fast and simple to install.
  • Low maintenance.
  • WXT Configuration Tool for PC.

Technical specifications

Wind speed

Measurement range 0-60 m/s

Accuracy ±0.3 m/s or ±3%, whichever is greater (0-35 m/s) ±5% (36-60 m/s)

Wind direction

Measurement range 0-360°

Accuracy ±3°


Rainfall cumulative accumulation after latest automatic or manual reset

Accuracy 5%*

Rain duration counting each ten second increment when droplet detected

Rain intensity one minute running average in ten second steps

Barometric pressure

Measurement range 600-1100 hPa

Accuracy ±0.5 hPa at 0-30°C (+32 - +86°F) ±1 hPa at -52 - +60°C (-60 - +140°F)

Air temperature

Measurement range -52-+60°C (-60 - +140°F)

Accuracy at +20°C ±0.3°C (±0.5°F)

(+68 °F)

Relative humidity

Measurement range 0-100 %RH

Accuracy ±3 %RH within 0-90 %RH ±5 %RH within 90-100 %RH

Internal: Neon Remote Terminal (NRT) Datalogger and Communications Module

The Tier2 Weather station incorporates the NRT-Terrestrial is a small self-contained datalogger which is connected to sensors in the field. The NRT collects readings, and transmits the data to a central server using Unidata’s NEON IP cellular communications systems, from where it is available to end users.


  • Fully programmable datalogger.
  • 32KB local data storage.
  • Internet, enables (GPRS/CDMA/Satellite) real time communications.
  • Low power requirement with solar charging.
  • SDI-12 interface for connection to a wide variety of environmental instruments.
  • In-built digital and analogue inputs for direct connection to sensors.
  • Compatible with Unidata support systems.

For more information

Contact NIWA Instrument Systems in Christchurch.

Tel: +64 3 343 7890, fax: +64 3 343 7891


Research subject: CoastsInstrumentationOceans