VOLTMETER FLUSH MOUNTING, MOVING COIL, CIRCULAR SCALE, RANGE 0- 150V DC. TYPE SQ- 96. FULL SCALE DEFLECTION 240 DEG., ACCURACY CLASS +/- 1. 0 % CONFORMING TO IS: 1248 COMPLETE WITH ILLUMINATED DIAL AND VIBRATION PROOF THICK RUBBER GASKET AND CLAMPS SIMILAR TO TYPE 4DF OF M/ S AE MAKE. THE IILUMINATION OF DIAL SHALL BE DONE WITH LEDs TO WORK WITH NORMAL SUPPLY VOLTAGE OF 110V DC. WITH VARIATION FROM 90V TO 130V.