Features： 1、INCULDED PARTS: Including 2pcs UV meter, a power amplifier board and 6pcs connecting cables, easy to connect and drive, convenient and durable. 2、GOOD PERFORMANCE: The improved design solves the trouble of small swing of pointer board and small setting sensitivity, with stable and reliable performance. 3、HIGH ACCURACY: This UV meter has backlight function, a wide measurement range, high measurement accuracy, and protection against overload and distortion. 4、WIDE APPLICATION: Can be used to connect player, computer sound card and other sound source signal devices, etc., has a wide range of applications. 5、 MATERIAL: Using ABS shell and PCB board, with is impact resistant and corrosion resistant, with convenient wiring and long service life. Specification： Item Type: VU Meter Panel Kit Material: ABS, PCB Application: Used to connect players, computer sound cards, and other source signal devices Backlight Voltage: AC DC 6-12B Measuring Range: 0-500ua ± 10% Resistance: 650Ω ± 10% Accuracy: ± 5% Package List： 2 x UV Meter 1 x Amplifier Board 6 x Cables