LED Voltage Meter (Red)

The LED Voltage Meter (Red) is a compact, standalone digital panel gauge designed for real-time DC voltage monitoring across a 3.0V to 30V range. Requiring only a simple two-wire connection without external circuitry, it is ideal for makers, students, and engineers working on robotics builds, battery packs, and embedded electronics.

Direct two-wire connection

The module connects directly to the measured power source with two wires for instant voltage readouts. This standalone design eliminates the need for external resistors, signal conditioning boards, or controllers, keeping wiring simple.

Wide 3V to 30V measurement range

Supporting a DC measurement range of 3.0V to 30V with approximately 1% accuracy, this gauge delivers dependable power monitoring. A 2 Hz refresh rate ensures voltage fluctuations on battery packs and DC supplies are visible in real time.

High-visibility numeric LED display

The bright red numeric display provides clear visual feedback inside embedded panels, instrument cases, and mobile robotics enclosures. The distinct readout helps makers easily monitor dedicated power rails and track battery discharge states.

Broad power diagnostics applications

Designed for versatile integration, the meter fits battery level indicators, portable testing devices, and DIY prototyping systems. It offers quick voltage verification to support hardware diagnostics and safe power management.