Met Instruments Project

Geolocation Data

Auburndale, FL
Polk County
April 4th, 2024
28.05°, -81.78°
52 m (171 ft) above Mean Sea-Level


R. M. Young 05103 Wind Monitor

Measured at a height of 2 meters.

Range: 0 – 100 m/s, 0 – 359°

Accuracy: ± 0.3 m/s (0.6 mph) or 1% of reading, ± 3°

Measures horizontal wind speed and direction.

Apogee Instruments ST-110 Thermistor Temperature Sensor

Measured at a height of 1.5 meters.

Range: -50 to +70°C

Accuracy: ± 0.1°C (0 to 70°C), ± 0.15°C (-40 to 0°C)

Measures temperature.

Vaisala HMP35C Temperature and Relative Humidity Probe

Measured at a height of 1.5 meters.

Range: -35 to +55°C, 0 to 100%RH

Accuracy: ± 0.5°C, ± 2.0%RH (0 to 90%RH), ± 3.0%RH (90 to 100%RH)

Measures dew point.

Vaisala PTB101B Barometric Pressure Transmitter

Range: 600 – 1060 hPa

Accuracy: ±6.0 hPa @ -40°C to + 60°C

Measures station pressure.

RainWise Rainew Wired Tipping Bucket Rain Gauge

Range: 0.01 in per tip

Measured at a height of NAN meters.

Accuracy: 5% @ 2 in/hr

Measures liquid precipitation.

Data Recording and Distribution

Campbell Scientific CR200X Data Logger

Records measurements from all instruments and outputs data via serial to converter every 1 second:

  • Date Time (YYYY-MM-DD HH:MM:SS)
  • Latitude (deg)
  • Longitude (deg)
  • Altitude (m)
  • Minimum Battery Voltage (V)
  • 3m Average Wind Speed (m/s)
  • 3m Maximum Wind Speed (m/s)
  • 3m Average Wind Direction (°)
  • 2m Average Temperature (°C)
  • 2m Average Relative Humidity (%)
  • 2m Average Dew Point (°C)
  • 2m Average Wet Bulb Temperature (°C)
  • 2m Average Mixing Ratio (g/kg)
  • 2m Average Equivalent Potential Temperature (°K)
  • Average Station Pressure (hPa)
  • Average Mean Sea-Level Pressure (hPa)
  • Average Altimeter Setting (inHg)
  • Average Density Altitude (ft)
  • Average Pressure Altitude (ft)
  • Total Hourly Rainfall (in)

US Converters Serial to WiFi Adapter

Takes serial data output from CR200X and sends to LAN for Arduino.


Reads serial data output from Serial to WiFi Converter and uploads data via HTTPPost query to script on webserver each new data entry.

Web Server

PHP script extracts data values from Arduino query and inserts them into MySQL 8 database.

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