ITEM NAME:Meter Mini Panel 0-100V DC voltmeter Tension Show 20mA three red wire G4E9 Meter Mini Panel 0-100V DC voltmeter Tension Show 20mA three red wire G4E9 Measuring range: DC 0 - 100 V You can install these mini voltage display. Precision: 1% Input range power supply: DC 4.5 - 30V Dimensions: approx 46 x 29 x 22 mm Display: Three digits Working current: less than 20mA Display color: red Storage Temperature: -10 ~ + 65 Black connects the negative pole common, red to the positive terminal of the power supply, white with positive polarity. Sample voltage 1 x voltmeter Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm..Working current: less than 20mA. Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.