Overview This DC Voltage Meter is designed for users who need reliable and precise voltage monitoring within a DC 3.2–30V range. Featuring easy installation, clear LED display, and built-in reverse polarity protection, it provides accurate readings without requiring an external power supply—making it an efficient tool for electrical testing, automotive diagnostics, and DIY electronics projects.Product Details Compact and user-friendly, this digital voltmeter delivers stable performance with a resolution of 0.01V under 10V and 0.1V above 10V. Its self-powered design minimizes setup effort, while the durable construction ensures consistent operation in various environments. Ideal for use in cars, solar systems, battery packs, and circuit debugging.Key Features 1. Wide Measuring Range – Accurately measures DC voltage from 3.2V to 30V, suitable for a variety of low-voltage applications. 2. High Visibility Display – Bright red LED digital screen ensures clear readability even in low-light conditions. 3. Reverse Polarity Protection – Built-in safety feature prevents damage from incorrect wiring connections. 4. Self-Powered & Low Consumption – Requires no external power supply and operates at under 20mA for energy-efficient performance. 5. Compact & Easy to Install – With dimensions of 48mm x 29mm x 22mm (1.89" x 1.14" x 0.87"), it fits neatly into panels and enclosures for seamless integration.Specifications Type: Digital Voltmeter Measuring Voltage: DC 3.2–30V (Two-wire Access) Display: LED Digital Display Maximum Input: DC 30V (Exceeding 30V may cause damage) Minimum Input: DC 3.2V (Below 3.2V may result in inaccurate or no reading) Resolution: 0.01V (