# Digital voltmeter, 0.28'', 0-100VDC, 3 wires, Green

> Digital voltmeter with a green 0.28'' display for measuring DC voltages between 0-100VDC. It has 3 wires: two for power supply (4-30VDC) and one for measurement, requiring a common GND. Current consumption under 20mA, refresh rate 200ms, declared accuracy +-1%. Operating temperature -10-65 degrees C. Dimensions 33x10.7x7.5mm, with mounting ears, wire length approximately 10cm.

- Page: https://sigmanortec.ro/en/digital-voltmeter-028-0-100vdc-3-wires-green
- Price: 9.09 RON
- Availability: In stock; 1-2 zile
- Reference: 9459 · EAN: 5946378922764
- Category: Electronic components > Testing and Measurement > Panel Meters
- Specifications: Supply Voltage: 0 VDC; Maximum Input Voltage: 100 VDC; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.006 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 03:26 (Europe/Bucharest)

## Description

Mini module with 0.28 inch green display for quick monitoring of DC voltages in electronic projects, measures 0-100VDC and is powered by 4-30VDC, 3-wire connection for power supply and measurement with common GND, low consumption below 20mA and fast refresh, compact format with mounting lugs for easy mounting.
Mini voltmeter module with 0.28 inch display, Green color, which can display a voltage between 0 and 100VDC.
It is provided with 3 wires, two for power and the third for voltage measurement. Attention , the supply voltage is between 4 and 30 VDC . The supply is made through the Red and Black wires. The third wire (White or Yellow, depending on the batch) will be placed on the Cathode (+), which actually measures the voltage. To work, it is necessary that the circuit has a common GND.
The module has mounting ears. of 33mm.
The decimal point moves automatically.
Specifications:
Supply voltage: 4 - 30VDC
Measured voltage: 0 - 100VDC
Operating current: <20mA
Display: 3 characters with a decimal point, digital tube
Display size: 0.28 inch
Display color: Green
Refresh rate: 200ms
Accuracy: +-1% declared. From the tests, at low voltages there is a gap of up to 0.4V.
Operating temperature: -10 - 65 degrees C
Dimensions mm: 33 x 10.7 x 7.5mm (ears included)
Wire length: 10cm approximately
Number of threads: 3