VU Meter Header Sound Audio Level Pointer Indicator Tester with Blue LED Backlight

Feature: 1. Sound Level Tester: High in accuracy and wide in measurement range, the VU meter can be used to test the audio power and sound level. 2. The Pointer Design: The pointer will swing from left to right to clear show the testing results, which will simplify your operation. 3. Better Application: Widely applicable to various scenes, including but not limited to DIY, home audio, car audio modification, etc. 4. Very Clear to Read: Adopting blue LED backlight for clear viewing and reading at night, this audio level indicator is easy to use. 5. Simpler to Install: Light in weight and compact in size as well, the audio level meter is very convenient to install within minutes.

Specification: Item Type: VU Meter Header Pointer Material: Zinc White Copper Pointer Color: Red Pointer Swing Direction: From left to right. Length of Pointer from Needle End to Shaft Center: Approx. 30mm / 1.18in Pointer Width: 0.45 ± 0.05mm Upper Cover Material: PMMA Electric Meter Installation Position: Vertical Backlight Board: Blue LED, 3.0 - 3.2V 20mA. Maximum Current Sensitivity: 500uA ± 10% Internal DC Impedance: 650 Ω ± 10%

How to Use: 1. For AC or DC 12‑16V power supply, please do distinguish between AC and DC input terminals. 2. L, G, R: This is the dual channel input terminal of the drive panel, which can be connected to the audio of the mobile phone, computer sound card, front level and other audio source equipment, and the signal is the signal that can be heard by the headset, and the power amplifier output terminal for receiving messages. When connecting, L, G, R correspond to the left, ground, and right channels of the audio source equipment. If the input is the mobile phone, computer sound card, front level and other audio sources, please turn the dial switch 1 and 3 to the ON end. If the input is the power amplifier output terminal for receiving messages, Please turn dial switches 2 and 4 to the ON end, and the signal will be compressed by 11 times. Note: The dial switch cannot turn the 1 to 4 dial switches to the ON end at the same time. 3. The adjustable potentiometer 100R‑V is used to adjust the backlight of the VU meter. 4. The adjustable potentiometers 50k‑1 and 50k‑2 control the pointer runout of VU meter 1 and VU meter 2 respectively.

Package List: 1 xVU Meter Header