10 Pcs 0.28 Digital Voltmeter Ammeter 100V 10A Volt Amp Meter Current Voltage Tester with Connect Wires Red Blue Dual LED Multimeter Display Panel for Christmas Lights Battery Electricity Monitor - Youyole, Youyole-Voltmeter Dc-77366

• What's Included in the Package: you are provided with 10 pieces of digital voltmeter ammeters with back cover, which is safe, reliable, keep away from dust, you can rest assured to use Product Features: voltage current meter testers are compact, using 0.28 inch LED display in red and blue color, can show simultaneously, the same screen display dual DC voltage, and the readings are clear and bright Bright and Clear Reading: LED display panel adopts automatic decimal point change design, anti interference, display refresh speed of about 300ms once Tips Before Use: the power supply voltage range of the product is 4-30V. Please check the range of use before use mini voltmeter to avoid the risk of burning. The voltage measurement error margin is 1%, and the current measurement error margin is 1% Wide Applications: the voltage meter can be applied to monitor the voltage and current of rechargeable batteries and electronic worktables, like Christmas lights, or cars, electric cars and motorcycles, which is a very practical and useful tool in your life