100% brand new and high quality Features: 1.An accessory for lever indicator,8x4 frequency spectrum,you require to weld it on your device by yourself. 2.Mode: factory test mode,fast flashing mode,intermittent mode,slow intermittent mode,high sensitivity mode,medium sensitivity mode,low sensitivity mode. 3.Professional and high sensitivity,with low power and energy consumption. 4.DIY test devices,provides you adjustable modes,several modes can switch,frequency spectrum accessories. indicator only,other accessories demo in the picture are not included Notice: Ensure that all of device's components are in correct positions and check before test,better not to let soldering iron touches components for so long due to high temperature. Instructions: 1.Install it correctly. 2.Connect with audio. 3.Set operating modes you wanna test. 4.Begin to test and finish your work. Specification: Model: ASD-84 Resting Current: