Grace Engineered Products R-3W-KB & R-3W-KB-L Voltage Indicator+ Warning Label, Adhesive Back Grace Engineered Products R-3W-KB Voltage Indicator, Flashing LED's, Bezel, 40-750VAC, 30-1000VDC Voltage Indicator, Flashing LED's, Bezel, 40-750VAC, 30-1000VDC Voltage Indicator, Through Door, Flush Mount, with Bezel, 30 mm Size, Flashing LED's, 40 - 750 Volt AC, 30 - 1000 Volt DC, 35 - 600 Volt AC, 1-Phase, 6 Inch Leads, NEMA 4X/12/13