🔋 Mini Digital Voltmeter – LED Voltage Display Panel Meter (3.3–30V)

This Mini LED Digital Voltmeter is a compact and easy-to-read voltage display module for monitoring DC power sources. With a measurement range of 3.3V to 30V, it is ideal for battery monitoring, DIY electronics projects, power supplies, solar systems, and embedded devices.

Available in bright red, blue, green, or yellow LED display colors (depending on stock).

🌟 Key Features

• Measures 3.3V to 30V DC

• Bright and clear LED digital display

• Small and easy to mount

• Simple 2-wire or 3-wire installation (depending on model)

• High measurement accuracy

• Reverse polarity protection

• Works with batteries, power supplies, RC models, DIY circuits, and more

  ⚙️ Wiring (2-Wire Type)

• Red wire → +V input (3.3–30V)

• Black wire → Ground
  (Reads voltage directly from its power source)

  ⚙️ Wiring (3-Wire Type)

• Red → Power + (e.g., 4.5–30V)

• Black → Ground

• Yellow → Voltage sense input (0–30V)

  🚀 Applications

• Battery level monitoring (Li-ion, Lead-acid, etc.)

• Power supply Voltage display

• DIY electronics & Arduino projects

• RC cars / drones

• Solar systems

• Electric bikes & scooters

• Embedded systems