... on thermal measurement principal, using innovation, advanced, sensitive hot film sensor, strong pollution tolerance, low airflow angle dependence, easy to ... Uncertainty of factory calibration±(1% measuring value,min. 0.1m/s)Sensor temperature range-20~150°C,Temperature sensitivity <0.1%/KOutput4 ... C,0~100°CAccuracy<±0.5°C@25°C(≥1m/s slow air )Response time10sOutput4~20mA,0~10VDC,RS485/ModbusGeneral ...