0.36' Voltmeter 0-100VDC 3 Wire

A 3-wire 0.36-inch LED panel voltmeter covering the full 0–100 V DC range — with a separate power supply input allowing measurement of voltages below 4.5 V. The 3-wire design is essential for high-voltage system monitoring where the display must be powered from a stable independent source.

🔹 Key Applications

• High-voltage battery bank monitoring (48 V, 72 V systems)

• Solar panel VOC voltage measurement

• EV battery pack voltage monitoring

• Industrial 48 V telecom power monitoring

• Inverter input voltage display

🔹 Why Choose This Module?

• 0–100 V full-range measurement — covers high-voltage DC systems

• 3-wire design — independent display power for accurate measurement

• 0.36-inch compact display — panel-mount in small enclosures

• ±1% accuracy across full range

• Red or blue LED options

🔹 Technical Specifications

• Display: 0.36" LED

• Voltage Range: 0 – 100 V DC

• Wiring: 3-wire (Vcc, GND, Vmeasure)

• Accuracy: ±1%

• Power Supply: 4.5 – 30 V (separate)

🔹 What's Included

1 × 0.36" 3-Wire 0–100V LED Panel Voltmeter

🔹 Pro Tip

💡 Power the display from a stable 5 V source (e.g. Arduino 5 V pin or USB) and connect the measurement input directly to your high-voltage bus through a 100 kΩ protective resistor on the positive measurement lead. This protects the meter input if the voltage measurement lead is accidentally shorted.

⚠️ Note: Always ensure proper heat dissipation and correct voltage configuration before powering connected devices.