Mini 0.36-inch Digital Led Display Panel Meter Detector Monitor Tools 3-wire

A 3-wire mini 0.36-inch digital LED voltmeter — measuring DC voltage on a bright 3-digit display with a separate power supply pin for reliable operation below 4.5 V measured voltages. The 3-wire design extends the measurable range to near-zero volts, making it more versatile than 2-wire self-powered variants.

🔹 Key Applications

• Low-voltage battery monitoring (below 4 V)

• 3.7 V LiPo and Li-ion cell voltage display

• Precision voltage monitoring in low-voltage embedded systems

• Panel voltage indicator powered from a separate supply rail

• USB voltage and charge monitoring

🔹 Why Choose This Module?

• 3-wire design — measure voltages near zero independently of display power

• 0.36-inch compact display — integrates into small panels

• Separate measurement and supply inputs — flexible installation

• ±1% accuracy — reliable monitoring

• Red or blue LED options

🔹 Technical Specifications

• Display: 0.36" LED

• Measurement Range: 0 – 30 V (or 0 – 100 V, specify)

• Wiring: 3-wire (Vcc, GND, Vmeasure)

• Accuracy: ±1%

• Power: Separate 4.5 – 30 V

🔹 What's Included

1 × Mini 0.36" 3-Wire Digital LED Voltmeter Module

🔹 Pro Tip

💡 The 3-wire version is essential when monitoring LiPo cells below 4 V — the 2-wire version loses display accuracy at low voltages. Power the display from a stable 5 V source and connect the measurement input to your monitored voltage. Ideal for 18650 and LiPo cell state-of-charge displays.

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