The MET05 is an all-in-one meteorological sensor. It measures wind speed, wind direction, air temperature, relative humidity and atmospheric pressure in a single unit. It has no moving parts and uses little power, which suits quick deployments, remote locations and large networks. It connects to a SpaceEcho station and reports to EchoCloud.
MET05 mounted on a pole at a weather station (illustration).
Features
Five parameters in one unit
One device and one mounting point instead of separate wind, temperature, humidity and pressure sensors.
Ultrasonic wind measurement
No cups or vanes to wear, so there is less to maintain.
Low power
Suited to solar-powered and remote sites.
One digital output
All five parameters are sent together over RS-485 (Modbus).
IP66 housing
ASA and engineering plastics.
Flexible mounting
Sleeve-fixed or flange-adapter-fixed, on a 1.5 m or 3 m flange or a 1.8 m tripod.
Specifications
Parameter
Principle
Range
Resolution
Accuracy
Wind speed
Ultrasonic
0–60 m/s
0.01 m/s
±0.3 m/s (0–30 m/s) or ±3 % (30–60 m/s)
Wind direction
Ultrasonic
0–360°
0.1°
±2°
Air temperature
MEMS
−40–60 °C
0.1 °C
±0.3 °C (at 25 °C, typical)
Relative humidity
MEMS
0–100 %
0.1 % RH
±3 % RH (0–90 % RH)
Atmospheric pressure
MEMS
300–1100 hPa
0.1 hPa
±0.5 hPa (0–30 °C)
Protection
IP66
Material
ASA and engineering plastics
Fixing
Sleeve-fixed or flange-adapter-fixed
Mounting frame
1.5 m, 3 m flange, 1.8 m tripod
Output interface
RS-485 (Modbus)
Supply voltage
12–24 V DC, or solar power
Current consumption
< 200 mA
Positioning
GPS device tracking (optional)
Choosing between a combined unit and separate sensors
Wind, temperature and humidity can be measured in one unit or with separate sensors.
Combined — MET05
Wind speed and direction, temperature, humidity and pressure in one housing, on one mounting point. Wind accuracy ±0.3 m/s over 0–30 m/s. Limit: all parameters are measured at the same height.
Separate — SA02 and TDV02
The Sonic Anemometer measures wind and the Ambient Sensor measures temperature and humidity, each placed at the height its measurement needs, following WMO recommendations. Limits: more devices to mount and wire, and the SA02 accuracy is ±1 m/s or ±4 %.
