ULSA M5B
Next-Generation Compact Ultrasonic Anemometer for IoT
Compatible with M5Stack*, equipped with a high-performance 9-DoF sensor.
User programming allows for wind direction correction, touch panel operation, Wi-Fi, Bluetooth transmission, and large-capacity data logging!
*Not included. M5Stack is a registered trademark of Shenzhen Mingzhan Information Technology Co., Ltd.
ULSA BASIC
Dive into the World of Ultrasonic Anemometers!
Born from high-altitude balloon development,
the industry's smallest and lightest class ultrasonic anemometer.
Compact
Diameter 75mm
Height 56mm(BASIC)
54mm(M5B)
lightweight
85 g (BASIC)
91 g (M5B)
HighRes
0.01 m/s
High Rate
10 Hz
Sampling
50 S/s
Various output
CSV
NMEA0183
List View
Appearance
Selling Store
Specifications
ULSA M5B
ULSA BASIC
Mechanical Spec.
Diameter
Height
Housing
Material
Mass
Ingress
Protect
Mounting Hole
75 mm
54 mm
*Excluding M-BUS
terminal height
HP Multi-Jet
Fusion PA12
91 g
None
1/4-20 UNC
← SAME
56 mm
←
85g
←
←
Electrical Spec. * 1
Power
consum-
ption
Operati-
ng
Tempera-
ture
Signal Outputs
Bitrate
385 mW
*Excluding
M5Stack
0~60 ℃
*No Condensation
USB microB / JST ZH / M-BUS
4800 / 9600 / 19200 / 38400 / 57600 / 115200 bps
385mW
←
USB microB / JST ZH
←
Measurement Spec. * 1
Measure-
ment
Items
Output
Rate
Output
Format
Resolut-
ion
Range
Precision
・Wind Speed
・Wind Direction
・Airspeed(Nose)
・Virtual
Temperature
・Sound Speed
1 / 2 / 5 / 10 Hz
※Rate selectable
only at
115200 bps
CSV / List View /
NMEA0183
Wind Velocity:
0.01 m/s
Wind Direction:
1 °
Virtual
Temperature:
0.01 ℃
Wind Velocity:
0~20 m/s
Wind Direction:
0~359 °
Wind Velocity:
±5 %rdg.
Wind Direction:
±1 °
Virtual Temperature:±2 ℃ (*2)
←
←
←
←
←
←
*1 - Specifications are subject to change without notice.
*2 - It is a virtual temperature derived from the speed of sound, and due to the influence of factors such as air pressure and humidity, it differs from the actual temperature.
ULSA Startup Guide
For information on the minimum setup required for the measurement Please click here.
Technical Documentation
The technical specifications of ULSA, as well as precautions for use, are documented.
ULSA 3D model
You can download the 3D reference model of ULSA for external dimensions.
This allows you to import it into CAD or visualize the size using AR.
Distribution Format：
STEP / STL / USDZ
Demo for M5Stack
This is the installation procedure for the M5Stack Core2 anemometer demo firmware that docks with ULSA M5B.
You can quickly test the anemometer function.
Firmware for ULSA
We provide firmware updates for ULSA BASIC / M5B to improve functionality and fix bugs.
Blog Articles
Inquiries & FAQ
For inquiries about ULSA or initial defects, please contact us using the form below.
After receiving the product, we only accept exchanges for initially defective items. Please make a claim within 14 days of receipt.
*Response is typically provided within 5 business days
ULSA is an acronym derived from the UltraSonic Anemometer, an ultrasonic wind direction and speed meter.
ULSA is a technology born during the research and development of gliding recovery balloons in STRATOVISION. By purchasing ULSA, STRATOVISION can continue its journey towards the development of new balloon technologies.
ULSA M5B / BASIC is not waterproof. Please use it indoors or temporarily outdoors under clear weather conditions (avoid using it in outdoor applications during rainy weather).
Examples: drone mounting, indoor airflow measurement, etc.
There is a 1/4-20 UNC screw on the bottom surface. You can mount and install it using your camera tripod.
Copyright © 2025 STRATOVISION