WIKA TYPE 712.25 - DIFFERENTIAL - COPPER ALLOY - PARALLEL ENTRY DATA SHEET: SP 07.09 MEASURING SYSTEM: COPPER ALLOY CASE: ALUMINIUM, BLACK BEZEL RING: ALUMINIUM, BLACK ACCURACY CLASS: +/- 2/1/2% NOMINAL SIZE: 4.5" UNIT: PSI - RANGE: 0 PSI...30 PSI PROCESS CONNECTION: 1/4 NPT DISPLAY: SUBTRACTING WINDOW: FLAT INSTRUMENT GLASS CASE TYPE: BLOW-OUT DISC BACK MOVEMENT: COPPER ALLOY INGRESS PROTECTION: IP 33 PACKING: SINGLE PACKING CONNECTOR LOCATION: LOWER MOUNT DIAL DESCRIPTION: PRESSURE GAUGE STANDARD: US-STANDARD COLOR FOR 1.SCALE (OUTSIDE): BLACK DIAL BACKGROUND: WHITE MANUFACTURER LOGO: *WIKA�* STOP PIN ON DIAL: AT 6 O'CLOCK ITEM # 4241487