ITEM NAME:LED Digital Vol Voltmeter DC 2.4V-30V 2 Wire Display Panel Module Car Blue Description: - Adjustable voltage and resistance, clockwise to step down voltage, can work directly at 5V, 9V, 12V, 24V - Display: Three 0.28 "digital tube - Measuring range: 2.4-30V - Input voltage: 2.4-30V - Output voltage: 2.4-30V - Ambient temperature: -10 / 65 (℃) Specification: - Material: PCB material - Size: Approx. 30x 11.7x 9.2mm/ 1.18x 0.46x 0.36inch - Diaplay Color: Blue Package Included: 1 Piece LED Car Voltmeter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement..Display: Three 0.28 "digital tube. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. - Diaplay Color: Blue.