DROK Blue 0.56" 4.5 150V DC Voltage Gauge LED Meter Digital Car Voltmeter Motorcycle Battery Tester 12V/24V Measuring range:DC 4.5-150V (two wires access) Current consumption: 5-15mA(generally), less than 20mA Display: three 0.56" LED digital tube Display color: Blue Allowable error:1% (+/- 1 digit)