Digital TR-35 Panel VU Meter Amplifier DB Sound Level Meter White LED Audio Lamp
The direction of the pointer swing :left to right. dB : -20~+5dB. Lamp : White LED x 1pc ,10~20mA (Original design has no resistor inside, so need for extra one to work). Mounting hole / pitch: φ35mm / 28.0x28.0mm.