Specifications:

Measurement range: DC 6-100V
Operating temperature: from -10°C to +65°C
Display color: Yellow LED display
Diameter: 22 mm
Accuracy: High accuracy, allowing reliable voltage monitoring
Functions:

Voltage measurement: Accurately measures and displays the DC voltage level from 6 to 100V, allowing for monitoring of voltage changes and ensuring proper operation of the electrical system.
Compact design: The 22 mm round-shaped indicator is compact and easily mountable even in restricted spaces.
LED display: The bright yellow LED display ensures easy readability, allowing the device to be used in poorly lit areas.
Usage:

Cars, motorcycles, and other vehicles: Used to monitor battery voltage and ensure stable operation of the electrical system.
Solar energy systems: Suitable for monitoring DC voltage in solar energy systems to track and optimize energy production.
Industrial and household electronics: Ideal for various DC electrical systems, allowing for voltage monitoring and ensuring safe operation of the system.
Laboratories and electronics projects: Used as a quick and convenient voltage indicator in various electronics testing and design tasks.
Pros:

Compact size: The round design allows easy integration of the device into panels, control boxes, or other equipment.
Wide voltage range: Suitable for DC networks from 6V to 100V, providing versatility across different systems.
Bright LED display: The yellow LED display is clearly visible even in poor lighting conditions.
Easy to install: The standard 22 mm diameter makes it easy to mount the device without additional accessories.
Cons:

Only for DC voltage: This device measures only direct current (DC) and is not suitable for alternating current (AC) systems.
Limited measurement range: While it covers a wide range, the device is not designed for voltages exceeding 100V.
Voltage display only: This device only displays voltage, so additional functions such as current or power measurement may require a separate device.
The yellow 22 mm DC voltmeter is a convenient and versatile device designed for accurate and quick monitoring of DC voltage in various electrical systems. It is an excellent solution for voltage monitoring in cars, solar energy systems, industrial applications, and laboratory projects, helping to effectively maintain the condition of the electrical system.