Bourdon tube pressure gauge

, Bourdon tube pressure gauge. Pressure connection: Material:Cu-alloy,lower mount(LM),Φ40:G1/8B,14mm flats or prominent .Φ50,63:G1/4B,14mm flats or prominent. pressure element: Materrial:Cu-alloy,≤60bar:C-type,≥60bar,:helical type Dial: white plastic,with pointer stop pin,black lettering pointer:case: black plastic black plastic with spring clips window:bezel ring crystal-clear plastic,snap fit triangular bezel,plastic accuracy class:working pressure: 2.5steady: 3/4 of full scale rang operating temperature:fluctuating: 2/3 of full scale range ambient: -40...+60short time: full scale value medium: +60 maximum temperature effect when temperature of the pressure element deviates from reference temperature(+20):max 0.4%/10K of the span. options: accuracy class 1.6,triangular bezel chromium-plated,case with eccentric ring at the bottom