Using the Matek Digital Airspeed Sensor ASPD - 4525 is easy. First, connect the power supply with a voltage between 4 - 6V DC. The red LED will light up to show it's powered on. Then, connect the I2C output (SCL & SDA) to your device. Make sure to attach the Pitot Tube and the silicon tubing correctly for accurate airspeed measurement. When using it, keep in mind that the sensor can handle a maximum pressure of 20 PSI, so don't expose it to higher pressures. It can work in temperatures from - 40°C to 125°C, but extreme temperatures may affect its performance a bit. For maintenance, keep the sensor clean and dry. If there's any dust on the board or tubing, gently clean it with a soft brush. Store it in a cool and dry place when not in use.