... thermal measurement principal, using innovation, advanced, sensitive hot film sensor, strong pollution tolerance, low airflow angle dependence, easy to ... or controlField jumpers selection air velocity range 0~5/10/15/20m/sMMI operation panel can configure various ... % measuring value @ | Δα | < 10°Uncertainty of factory calibration±(1% measuring value,min. 0.1m/s)Sensor temperature range-20~150°C ...