TENGLONG SEALING PRODUCTS MANUFACTORY,Website:://.tenglongsealings.com, YUYAOYUYAO SUNPASS INTERNATIONALMICRO PRESSURE GAUGEDescription:Micro pressure gauge is fitted to the airline connection, and can be fitted during filling,discharging or testing.Indication Range:1~500mmAq,0~5,000mmAq or According to customers orderCase Nominal Diameter:2- 1/2"; 3",4",6",8",10"Case Material:Mail Steel,Steel ChromedConnection:Bottom ConnectionInlet Thread:1/4"; 1/8"; 3/8" BSP, BSPT, NPT or According to customers requirements.Accuracy:3"~4":0.5~1%;2-1/2":1~0.5%