Features: Combining functions such as 500VU meter head Amplifiers electronic tube, biliary meter, sound pressure meter, etc., providing users with multifunctional use. Base on the center, it can be deflected 41 degrees to the left and 45 degrees to the right, for a total of 86 degrees. The device is equipped with a Back Light display screen, which clearly displays data and is easy to use in low light environment, improving user convenience. Provide accurate measurement, which can be widely used in sound equipment debugging and sound engineering monitoring. Integrates multiple functional module, simplifies user operate step, and improves measurement efficiency. Quality, small in size and cute appearance, stable performances. Specifications: Material: ABS+Metal Installation size: 28x28mm/1.1x1.10inch Opening size: diameter 34mm/1.3inch Meter specification: DCSO39 500V Specification: DC500μA Working voltages: AC6-12V or DC6-12V Package Includes: 1pc VU Meter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.