0.56” DC 0-30V Digital Display Voltmeter

Description:

• Three Wires
• Ultra-low cost, high precision to meet most of the application requirements.
• low starting working voltage, red minimum 4.5V, green minimum 5.0V, blue minimum 5.0V.
• with reverse protection, anti-burn.

Specifications:

•  Measuring range 0.00V-30.0V ,0-100V
• Maximum input DC30.0V 100V . Note: Input voltage higher than 30V or 100V may be permanently damaged!
• Tolerance ± 1%; error greater than or equal to 10V ± 0.3V; error less than 10V ± 0.10
• Input impedance> 100K ohms
• Working current red <23mA, green <18mA, blue <13mA
• Refresh speed of about 300mS once
• Display mode three 0.56 "LED digital tube
• Display color red, green, blue optional
• Lead length 20cm
• Dimensions 48 x 29 x 22 mm(LxWxH)
• Mounting hole 46 x 27 mm
• Net weight 19g
• Gross weight 26g
• Operating temperature -10 ℃ ~ 65 ℃

 
Package Included:

• 1 x 0.56" LED Digital Voltmeter

Connections :

1. Red Wire: Positive of the Power supply
2. Black Wire: Negative of the Power supply and also used as the negative of the measurement voltage source
3. Yellow/White/Blue: Positive of the measurement voltage source.

With this Voltmeter Measurement can be done in two different scenarios observe the connection illustration accordingly:

CASE 1: If you have only one power source to give Power as well as to measure the voltage 

CASE 2: If you have to measure the voltage of another source then with a separate power supply for Voltmeter: