With its size and simple installation process, this voltmeter is a must tool for anyone look to maintain precises control over their electrical systems This voltmeter is for efficiency, boasting low power consumption of ≤20mA and a operating voltages ranges of 4-30V, making it ideal for various applications Perfect for electronic engineers, enthusiasts, electricians, and professional who require accurate voltages in their projects precise voltages measurement with our 4 digit LED voltmeter, featuring a measuring ranges of 0.000V-100V and a clear 0.36inch digital display for easy readability Widely applicable in laboratory testing, projects, automotive circuits, and solar systems, this voltmeter ensures across setting, Manufacturer: YOUKELAI