100% Brand New.Supply voltage: 4.5-30V (wide range)Test voltage: 0 ~ 100VColor of LED light: Red + BlueSize: 4.7 x 2.8 x 1.7cm (1inch=2.54cm)The minimum resolution below 10V: 0.01VThe minimum resolution above 10V: 0.1VDisplay screen: 1.36 inch LEDOperating current:<20mAMeasuring speed:£¤ 500mS / timesAccuracy: 1%( 1 word)Minimum operating voltage: +4.5 VMaximum operating voltage: +30 VOperating Humidity:1080%Operating temperatures: -10+65Operating pressure: 80 ~ 106kPaAvoid direct sunlightNote: Due to the difference between different monitors， the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you!Package Content:1 x Voltmeter Ammeter