Features: 1. 6 inch dial and 8 inch dial protected by impact-resistant, clear polymer lens provides fast, accurate readings at a glance. 2. Liquid filled gauge minimizes vibration and wear to gauge movement 3. Replaceable diaphragm rubber and field-repairable diaphragm make on-site service easy. 4. Rugged design enables accurate pressure measurements on cementing, acidizing, fracturing, and choke manifolds. Specifications: Measurement Range (MPa) 0~16, 25, 40, 60, 80, 100,120 Accuracy 2.5(≤25MPa) 1.6(≥40MPa) Temp. Range -25oC~+55oC Shock Demand GB4439 V.H.4 or V.H.5 Standard JB /T 6804