Model No.: : TM-402~TM-404 Product Description - 30mm 6 plastics blade - Light air response 0.4m/s - Air flow calculate function. - Max/Min/Avg and data hold. - Datalogging capacity: 99 records. - Memory recall function. - Backlight function. - ...

Model No.: : TM-411~414 Product Description - 45mm 4 plastics vane - High sensitivity of 0.4m/s. - Air flow calculates function. - Max/Min/Avg and data hold. - Auto power off with disable function. - Datalogging capacity: 99 records. - Memory re ...

Model No.: : TM-740 Product Description - 30mm 6 plastics vane. - Light air response 0.4m/s. - Air flow calculate function. - Max/Min/Avg and data hold. - Auto power off with disable function.