Description

CDF-22B MINI ULTRASONIC WIND SPEED& DIRECTION SENSOR

Overview

The CDF-22B mini ultrasonic wind sensors is a small and portable instrument, which uses the ultrasonic principle to accurately measure wind speed and direction, and can be used in many fields such as meteorological observation, environmental monitoring, construction engineering, aviation and navigation.

The ultrasonic wind sensors usually consists of an ultrasonic transmitter and receiver. When working, the transmitter will emit ultrasonic signals into the air, ultrasonic waves spread in the air, when the wind, the flow of the wind will make the propagation speed of ultrasonic waves change.

Key Features

• No moving parts, effectively avoiding mechanical wear and failure, with a longer service life.

• High measurement accuracy and fast response speed

• Low maintenance cost, no need for frequent cleaning or replacement of vulnerable parts.

• Multiple Output Signals

• Compact structure, light weight, easy installation

Select Options

Accessory
▼ More

Image	Product	Specification
	Flange bracket	Material: Aluminum alloy
	RS485 to USB Converter	RS458 and RS232 To USB （1m）
	4G WIFI Ethernet module	Free to the CODA cloud platform And Provide SIM card
	4.3-inch touch screen color recorder	Local storage, customized LOGO, wireless transmission

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Specifications

CDF-22B-Specifications

Parameters	Measuring Range@Resolution@Accuracy
Wind Speed	0-40m/[email protected]/s@±（0.5+0.05V）m/s
Wind Direction	0-360°@0.1°@±5°
Sampling Frequency	10HZ
Operating Temperature	-30℃—70℃
Output	Standard product with RS485 interface, ModbusRTU
Maximum Output Frequency	Passive Mode: 1/S Active Mode: 1/min
Power Supply	DC9-24V
Protection Level	IP65
Mounting Method	Standard Product is sleeve fixed
Fixed Bracket (additional purchased)	Optional: 1.5 meter or 1.8 meter bracket
Cable	3 meter cable line

Dimension & Mounting

Miniature wind speed sensor

Download

Datasheet & User manual

CDF-22B Mini Ultrasonic Wind Speed and Wind Direction Sensor-1.0 (87 downloads )

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FAQ

1. Q: What is an ultrasonic wind speed and direction sensor?

A: An ultrasonic wind speed and direction sensor (also called an ultrasonic anemometer) is a meteorological instrument that measures wind speed and direction using ultrasonic time‑difference technology, with no mechanical moving parts.

2. Q: How does it work?

A: It uses multiple ultrasonic transducers (typically arranged in a cross pattern) to send and receive ultrasonic pulses. Wind changes the propagation time of ultrasonic waves: faster with the wind, slower against it.

3. Q: What are the main advantages over mechanical anemometers?

No moving parts: No wear, longer lifespan, low maintenance
Fast response: Captures gusts and turbulence
High accuracy: Typically ±2% for wind speed, ±3° for direction
Zero start‑up wind speed: Measures from 0 m/s
360° omnidirectional: No dead angle
Harsh environment resistance: IP65/IP66, works in rain, snow, dust

4. Q: What are its typical measurement ranges?

Wind speed: 0–40 m/s
Wind direction: 0–360°
Resolution: 0.01 m/s (speed), 1° (direction)

5. Q: What output interfaces are available?

A: RS485 (MODBUS‑RTU) NMEA-0183

6. Q: Does it need calibration?

A: Factory‑calibrated; no field calibration required for most applications. For high‑precision use, annual verification with a wind tunnel is recommended.

7. Q: Why is the measured wind speed zero?

A: Actual wind speed is below the sensor’s minimum threshold (≈0.01–0.1 m/s)

8. Q: Can it work in extreme weather?

A: Yes, with IP65/IP66 protection. Heated models operate reliably at −40°C and resist freezing rain/ice.

9. Q: What applications is it suitable for?

A: Weather stations, wind farms, ports, bridges, environmental monitoring, smart cities, agriculture, and industrial IoT.

Additional information

Model	CDF-22B
OEM/ODM	Available
MOQ	1PCS
Lead Time	5-7 days
Certification	CE-EMC, RoHS, ISO9001
Size	15cm12cm12cm
Weight	0.57KG
Payment	T/T, L/C or Credit-card