MetSens550 Compact Weather Sensor for Temperature, RH, Barometric Pressure, and Wind with Precipitation Connector and Compass
Measures 5 Common Meteorological Parameters
IEC 61724-1 Compliant
weather applications water applications energy applications gas flux and turbulence applications infrastructure applications soil applications

Overview

The MetSens550 compact weather sensor measures wind speed and direction via an ultrasonic sensor, as well as air temperature, relative humidity, and barometric pressure, in a single, combined instrument mounted inside three double-louvered, naturally aspirated radiation shields with no moving parts. An integrated side connector allows users to connect a tipping bucket rain gauge. An integrated electronic compass allows the MetSens550 to provide accurate, relative wind direction measurements without being oriented in a particular way, making installation easier. WMO average wind speed and direction and gust, temperature, relative humidity, barometric pressure, absolute humidity, air density, wet bulb temperature, rainfall total, and rainfall intensity data are provided. The MetSens550 is compatible and easily integrated with the MeteoPV Solar Resource Platform and any Campbell Scientific data logger using SDI-12, RS-485, ModbusRS-485, or NMEA RS-232.

Benefits and Features

  • Quality measurements
  • Fast and simple to install
  • Compact, integrated design
  • Lightweight and robust

Images

Cable for the MetSens550

Specifications

Measurements Made Air temperature, barometric pressure, relative humidity, wind direction, and wind speed. (An integrated side connector allows users to connect a tipping bucket rain gauge.)
Sampling Rate 1 Hz
Digital Communication Modes Serial RS-232, RS-485, SDI-12, NMEA, Modbus, ASCII
IP Rating 66
Compliance
  • CE, RoHS
  • Where applicable, all individual parameters meet or exceed specifications of IEC 61724-1 (2017, 2021).
Operating Temperature Range -40° to +70°C
Operating Voltage 5 to 30 Vdc
Typical Current Drain @ 12 Vdc
  • 25 mA (continuous high mode)
  • 0.7 mA (eco-power mode; 1 hour polled)
Weight 0.7 kg (1.5 lb)

Air Temperature Measurement
Measurement Range -40° to +70°C
Resolution 0.1°C
Accuracy ±0.3°C (@ 20°C)

Relative Humidity Measurement
Measurement Range 0 to 100%
Resolution 0.1
Accuracy ±2% @ 20°C (10 to 90% RH)

Barometric Pressure Measurement
Measurement Range 300 to 1100 hPa
Resolution 0.1 hPa
Accuracy ±0.5 hPa (@ 25°C)

Wind Speed Measurement
Measurement Range 0.01 to 60 m s-1
Accuracy
  • ±3% (up to 40 m s-1)
  • ±5% (up to 60 m s-1)
Resolution 0.01 m s-1
Starting Threshold 0.01 m s-1

Wind Direction Measurement
Measurement Range 0° to 359°
Accuracy ±3° (up to 60 m s-1)
Resolution 1°

Precipitation Input
Measurement Input Type Triggering
Range 0 to 1000 mm h -1
Precipitation Resolution From 0.01 mm
Input to MetSens550 Contact closure via an M8 male, 4-pin connector. (User-supplied 20 m cable or mating female connector required.)

Compass
Measurement Range 0 to 359°
Resolution 1°
Units of Measure Degrees
Accuracy ±3°

Downloads

MetSens550 Example Programs v.1 (5 KB) 09-25-2019

Three CR1000X data logger programs that read the MetSens550 measurements and sensor status. An example program is included for each output option (RS-232, Modbus, SDI-12).

Frequently Asked Questions

Number of FAQs related to MetSens550: 1

  1. What are some distinguishing features of the MetSens compact weather sensors?
    • MetSens has a compass module that outputs at 1 Hz real time without affecting any other measurements, which allows the correction of wind direction if the station is installed on moving ice.
    • MetSens has a two-year service life, which is especially helped by the use of a double-louvered radiation shield to reduce the flow of contaminants getting to the temperature/humidity probe.
    • MetSens has an option for GPS.
    • MetSens has a wind speed resolution of 0.01 m/s, whereas most all-weather sensors have a resolution of 0.1 m/s.
    • MetSens has a dew point accuracy of ± 0.3°C, whereas most all-weather sensors have an accuracy of > ±0.7°C.
    • MetSens temperature resolution is for the full-range temperature at 0.1°C, whereas other all-weather sensors change to 0.2° at the extremes.
    • MetSens offers users the option to use any industry-standard tipping bucket rain gage (MetSens550).
    • MetSens provides RS-232, RS-485, Modbus, and SDI-12 from all models.
    • MetSens uses Intelligent Signal Processing (ISP) and Adaptive Gain Control (AGC), which have been proven worldwide to provide good quality data.
    • MetSens does not indicate a drop in wind speed if the temperature drops or if rain occurs, whereas this is fairly common in other all-weather sensors.
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