The Blue Sea Systems DC Digital Multi-Function Meter displays amperage from -500 to +500 Amps and voltage from 0 to 60 Volts in 0.01 Volt increments. Features audio and visual alarms for high and low voltage. Standard meter operates in negative side of circuit only. Shunt Shifter (item #350782) required for positive side installation, such as alternators. Display offers 3 levels of brightness. Programmable sleep mode blanks display for power conservation. Splashproof front. Includes 500 Amp shunt. INCLUDES• DC Digital Current Shunt, 500A (Blue Sea No. 8255 / item #316441)SPECIFICATIONS• Meter: Current / Voltage• Alarms: High and Low Voltage• Input Voltage: 7 - 60V DC• Maximum Power Consumption: 1 Watt• Minimum Power Consumption: 0.6 Watt• Sleep Mode: ProgrammableBlue Sea Systems No. 8248 Audio and visual alarms for high and low voltage Includes 500 amp shunt Splashproof front | DC Digital Multi-Function Current and Voltage Meter With Alarm