Xscorpion Voltmeter Digital 3 Digit Led Display Black

XScorpion LED Digital Voltmeter, Black

SURFACE OR FLUSH MOUNT BLACK FINISH HOUSING - BLACK FACE
1 7/8"e; DIAMETER HOLE x 5/8"e; MOUNTING DEPTH (2 1/8"e; x 1"e; OVERALL)
2 WIRE POSITIVE OR NEGATIVE HOOK UP
AUTO SENSING TURN ON
3 DIGIT RED LED DISPLAY