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

Gravity: PAV3015 Air Velocity Sensor is a compact digital anemometer designed for accurate airflow monitoring in embedded electronics and intelligent control systems. Built around the Posifa PAV3015D thermal sensing element, this airflow measurement module calculates wind speed by detecting temperature differences across a thermopile structure. The solid‑state sensing approach eliminates mechanical moving parts, improving reliability and durability compared with traditional cup-style instruments. With a measurement range of 0–15 m/s, ±5% F.S accuracy, and a fast 125 ms response time, this compact wind speed sensing board enables dependable real‑time airflow monitoring for server cooling systems, HVAC optimization, and UAV airspeed detection.

Compact Thermal Anemometer Design for Embedded Integration

This airflow detection module adopts a miniature solid‑state thermal measurement architecture, eliminating bulky mechanical components used in conventional cup-and-vane anemometers. The streamlined structure allows seamless installation inside compact enclosures, embedded monitoring systems, and portable instrumentation. Such a small footprint makes the wind speed sensing board particularly suitable for space‑constrained electronics, robotics platforms, and intelligent ventilation devices where conventional airflow meters cannot be accommodated.

Figure: Dimension of Gravity: PAV3015 Air Velocity Sensor

Reliable High‑Accuracy Airflow Measurement

The thermal airflow sensing board delivers precise velocity readings across a wide 0–15 m/s range. Measurement accuracy of ±5% F.S ensures dependable monitoring in environments where airflow stability directly affects system performance. A typical response time of 125 ms enables rapid detection of changes in airflow conditions, making this digital wind speed detector well suited for closed‑loop control systems, environmental monitoring instruments, and automated cooling management.

Gravity I2C Interface for Rapid Prototyping

Standardized Gravity I2C connectivity simplifies hardware integration and reduces wiring complexity in development projects. Support for a 3.3V–5V power supply allows seamless compatibility with common microcontroller platforms including Arduino, ESP32, and Raspberry Pi. Such plug‑and‑play design makes the air velocity sensing module a practical option for rapid prototyping, educational experiments, and professional embedded airflow monitoring solutions.

Low‑Power Operation for Portable Systems

Energy‑efficient circuit design enables stable airflow monitoring while drawing only 10 mA of operating current. The low‑power profile benefits battery‑powered electronics, remote monitoring stations, and portable diagnostic equipment that require long operating durations. Combined with the compact structure and digital interface, this lightweight airflow measurement sensor supports mobile environmental instruments, handheld anemometers, and smart sports devices.

Typical implementations include electronics cooling supervision in data centers, airflow monitoring inside smart HVAC ducts, compact airspeed sensing in UAV flight systems, and portable environmental measurement instruments requiring accurate and efficient airflow detection.