ITEM NAME:DC 0-100V Dual LED Digital Voltmeter Ammeter Panel Voltage Current Tester Description: - Voltage Measuring range: 0.0V-100V - Current Measuring range: 0-10A - Power Supply range: DC 4-30V (The maximum input voltage can not exceed 30V. Otherwise the meter will be burned) - Voltage error: Â ±0.1% - Current error: Â ±1% - Display: 0.28" digital tube - Color: Red Blue - Refresh rate: about 300mS/times - Operating temperature: -10℃~65℃ Specification: - Material: electronic components - Size: 4.8x 2.8 x 1.7cm/0.19 x 0.1 x 0.07inch Package Included: 1 Piece 0.28" Digital Voltmeter.Current error: Â ±1%. - Display: 0.28" digital tube. - Color: Red Blue. - Material: electronic components.