Application: Ansolute Pressure Gauge use to watch or measure some vacuum equipments (for example:Vacuum packing machine,watch condensation pressure and liquid steam pressure equipment.) which is absolute pressure gauge. Specification: Case Diameter:100mm Seals Diameter:160mm,100mm Ambience:-20~+60 Range:0-10/16/25/40/60/100kpa abs Accuracy:1.6%