| SQUARE GAUGE SPECIFICATIONS  | 
                ROUND GAUGE SPECIFICATIONS  | 
              
               
                | CASE:  | 
                Black Painted Steel Case  
                  and Ring | 
                CASE:  | 
                Powder Black Painted Steel with 
                  Chrome Ring | 
              
               
                | LENS: | 
                Glass  | 
                LENS: | 
                Plastic (3½" tridicators have adjustable lens with indicator 
                  mark) | 
              
               
                | SOCKET: | 
                Brass | 
                SOCKET: | 
                Brass | 
              
               
                | CONNECTION: | 
                ½" N.P.T. - 3½" Square Gauge Available in Bottom Mount 
                  or Lower Back Mount  | 
                CONNECTION: | 
                ¼" N.P.T- CBM 2½" (63.5mm) 
                  ¼" N.P.T- CBM 2½" (63.5mm)w/2" Ext. 
                  ½" N.P.T. -CBM, LBM or BM 3½" 
                  (80mm) | 
               
                | MOVEMENT: | 
                Precision Machined Copper Alloy Movement insuring sustained 
                  accuracy and extended service | 
                MOVEMENT: | 
                Precision Machined Copper Alloy Movement insuring sustained 
                  accuracy and extended service | 
              
               
                | POINTERS:  | 
                Red Finished Aluminum  | 
                POINTERS: | 
                Black Finished Aluminum | 
              
               
                | DIAL SIZE:  | 
                3½" Square | 
                DIAL SIZE:  | 
                3½" and 2½" Round | 
              
               
                | DIAL FACE:  | 
                Corrosion Resistant Aluminum  | 
                DIAL FACE:  | 
                Corrosion Resistant Aluminum  | 
              
               
                | ACCURACY:  | 
                Pressure ±3-2-3% of full scale Temperature: ± 2% of full 
                  scale | 
                ACCURACY:  | 
                Pressure ±3-2-3% of full scale Temperature: ± 2% of full 
                  scale |