Anemometer with port, memory, software for wind speed, temperature and air flow. All the test instruments come manufacturer calibrated. ISO certification can be made as an option. - Speed measurement up to 45 m/s or 100 mph - Wind speed: 0.01 m/s, accuracy 3% 0.1 - Air temperature: 0.2C / 32.4 F , accuracy 1C / 33.8F - Air flow: 0.001 to 100, accuracy calculated from the wind speed and surface