The Blue Sea Systems DC Analog Voltmeter measures 8 - 16V DC. Backlit meter face (separate 12 or 24V DC backlight connections). Includes a 3-position switch for multiple battery banks. Voltmeter is mounted in a 1/8" thick aluminum alloy panel.• Meter: Voltage• Face Size: 2.75"• Function: 8 - 16V DC• Backlighting Amperage: 16mA @ 12V DC / 20mA @ 24V DC• Meter Current: 1mA at full scale• Overall: 3.75"H x 5.25"WBlue Sea Systems No. 8015 Mounted in an aluminum alloy panel Backlit meter face | DC Analog Voltmeter Panel, 8 - 16V DC