... , 2.0"(50mm), 2.5"(63mm), 3.0"(75mm) ,4.0"(100mm), 2).Pressure Range : -1~0bar to 0~400bar 3).Accuracy : ±1%, ±1.6%, ±2.5 ... Gaskets/Filling cap: Neoprene Or Silica gelOPTION 1. With red mark adjustable pointer , 2. With othe unit according requirement, such as bar,psi ... equipment and complete test facilities, ensuring high quality products. With the help of China Jiliang University, by heaps of times ...