Applied to detect, adjust, control air velocity in ventilation measurement and control system to satisfy the relevant ventilatio FeaturesBased on thermal ... capabilityMultiple output optional, optional relay output for alarm or controlField jumpers selection air velocity range 0~5/10/15/20m ... °CAccuracy<±0.5°C@25°C(≥1m/s slow air )Response time10sOutput4~20mA,0~10VDC,RS485/ModbusGeneral Relay output1 ...