HQ980 series thermal mass flow meter

HQ980 series thermal mass flow meter are introduce into America tech and research our Patent ( patent No.: 98224228.X) . and get the certification of explosion-proof ( No.: GYB98463) . Our product also pass country standard ( JJG879-95) . HQ980 flow meter direct mass flow measurement without the need for pressure or temperature correction and it become the most popular flow meter from all over the world