| CIRCUIT CURRENT FOR WHICH DESIGNED | AC |
| DIAL SCALE MARKING COLOR | BLACK, FED STD 595, 27038 SINGLE INDICATOR SINGLE RANGE |
| INDICATOR TYPE | DIAL W/POINTER |
| INSTALLATION DESIGN | PANEL |
| MEASUREMENT RANGE | +0.0 TO 150.0 VOLTS SINGLE INDICATOR SINGLE RANGE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | VOLTMETER |
| POINTER COLOR | BLACK, FED STD 595, 27038 SINGLE INDICATOR SINGLE RANGE |
| SCALE GRADUATION TYPE | LINEAR SINGLE INDICATOR SINGLE RANGE |
| SPECIAL FEATURES | THE MK777-311 IS USUALLY SOLD WITH THE -312, AS A SET, BUT CAN BE PROCURED SEPARATELY |
| STYLE DESIGNATOR | ROUND FLUSH MTG |