Acrylic version with alternate display Dual-channel signal input Alternately display 4 frequencies Adjustable internal resistance and alternating speed Channel B for signal multiplexing and can be selected as trigger output Oscilloscope Parameter Settings: Adjust your oscilloscope to X-Y mode (different oscilloscopes have different adjustment methods, please explore by yourself) The vertical parameters of X/Y 2 channels are adjusted to 1V/div, and a single trace oscilloscope only needs to adjust one. Analog oscilloscope does not need to adjust the time base; digital oscilloscope time base is adjusted to 1-5ms When connected correctly, the oscilloscope will display a horizontal line. If the vertical line is displayed, the XY plugs need to be reversed. The horizontal and vertical lines are in the display frame when adjusting the vertical and horizontal parameters. Color: Black Material: PCB+Acrylic+Electronic Component Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Voltage: AC100-240V Package Contents: 1x Tester 1x Power Adapter (US Plug) 1x Accessories Kits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.