# Gravity: PAV3015 Air Velocity Sensor (0-15 m/s, I2C)

**Type:** Product page · **SKU:** SEN0639 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/dfrobot-gravity-pav3015-air-velocity-sensor-i2c-anemometer-wind-speed-arduino-esp32-raspberry-pi.html ([markdown](https://core-electronics.com.au/dfrobot-gravity-pav3015-air-velocity-sensor-i2c-anemometer-wind-speed-arduino-esp32-raspberry-pi.html.md))

Get accurate (±5%) air velocity data with the Gravity: PAV3015 Sensor. This compact, fast-response (125ms) anemometer uses I2C for Arduino, ESP32, or RPi....

## Pricing

- **Price:** $88.90 (inc GST) — $80.82 AUD, exc GST

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 21 and Sep 25.

## Description

The Gravity: PAV3015 Air Velocity Sensor is a compact, high-performance anemometer for precise airflow measurement. It integrates the Posifa PAV3015D sensor, which operates on the thermopile principle by measuring temperature differences to calculate air velocity. This solid-state method provides significant advantages over traditional cup anemometers. The PAV3015 anemometer delivers a wide measurement range of 0 to 15 m/s with ±5% F.S accuracy and an exceptionally fast 125 ms response time. Coupled with a low 10 mA power consumption and a 3.3V–5V Gravity I2C interface, this air velocity sensor is ideal for embedded systems in applications like server cooling, HVAC monitoring, and UAV airspeed detection.

**Compact Form Factor for Integrated Systems**

The PAV3015's thermal-based design eliminates the bulk associated with traditional cup-and-vane anemometers. Its minimal footprint is a critical advantage, enabling seamless integration into compact devices, embedded systems, and portable equipment where space is a primary constraint. This allows for airflow measurement capabilities in applications previously limited by sensor size.

![Dimension of Gravity: PAV3015 Air Velocity Sensor](https://dfimg.dfrobot.com/enshop/image/data/SEN0639/size_0x0.jpg.webp)

Figure: Dimension of Gravity: PAV3015 Air Velocity Sensor

**High-Accuracy Measurement with Rapid Response**

The PAV3015 delivers reliable and precise air velocity readings across its full 0–15 m/s range. With an accuracy of ±5% F.S, this wind speed sensor provides trustworthy data for critical monitoring. Furthermore, its 125 ms typical response time ensures immediate detection of airflow changes, making it highly effective for real-time feedback loops, system alarms, or dynamic control systems.

**Simplified Integration with Gravity I2C**

Equipped with the standard DFRobot Gravity I2C interface, this I2C anemometer ensures a simple, plug-and-play connection. It supports a wide 3.3V to 5V power supply, guaranteeing out-of-the-box compatibility with mainstream microcontrollers such as Arduino, ESP32, and Raspberry Pi. This standardized interface accelerates prototyping and simplifies final project assembly.

**Optimized for Low-Power Applications**

Engineered for energy efficiency, the anemometer operates on a minimal 10 mA of current. This low-power profile makes it an excellent choice for battery-powered systems, remote monitoring stations, or portable measurement devices, such as handheld anemometers or sports equipment, where power conservation is a critical design requirement.

### Specification

- Supply Voltage: 3.3–5V
- Operating Temperature: -25 to +85 degrees
- Operating Humidity: 0–100% R.H. (non-condensing)
- Operating Current: 10 mA
- Response Time: 125 ms
- Measurement Range: 0–15 m/s
- Accuracy: ±5% F.S
 
### Documents

 [Product wiki](https://wiki.dfrobot.com/_SKU_SEN0639_Gravity_PAV3015_Air_Velocity_Sensor)[Schematic](https://img.dfrobot.com.cn/wikicn/62b2fb5caa613609f271523c/8a46fcf383e6fcb959f63093194c3b84.pdf)[Layout](https://img.dfrobot.com.cn/wikicn/62b2fb5caa613609f271523c/a3a28145c5691770e7e90538b84682bf.pdf)[Dimension](https://img.dfrobot.com.cn/wikicn/62b2fb5caa613609f271523c/59c496c71ec428950de1434550aecd71.pdf)[PAV30xx datasheet](https://img.dfrobot.com.cn/wikicn/62b2fb5caa613609f271523c/7fb13423df4d5532ff1c79a51bd9daa9.pdf)[I2C protocol](https://img.dfrobot.com.cn/wikicn/62b2fb5caa613609f271523c/3867e2c212d65f64c65b78c3388cecdd.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN0639-1.jpg)