{"product_id":"double-pointer-vu-meter-stereo-audio-amplifier-board-db-sound-level-indicator-meter-adjustable-backlight-with-driver","title":"Double pointer VU Meter Stereo Audio Amplifier Board DB Sound Level Indicator Meter Adjustable Backlight With Driver","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv style=\"margin:10px auto 0px;margin-bottom:0px;margin-top:10px;margin-left:auto;margin-right:auto;display:inline-block;max-width:100%\"\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae03.alicdn.com\/kf\/S80cf4fdd0bdd482ea952778fe30067d3H.jpg\" style=\"width:932px\" width=\"932px\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin-top:-66.95%\"\u003e\n\u003cdiv style=\"margin-top:0%;margin-left:0%;width:25%\"\u003e\u003ca href=\"http:\/\/www.aliexpress.com\/item\/detail\/1005005005845144.html\" 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href=\"http:\/\/www.aliexpress.com\/item\/detail\/1005004724603856.html\" target=\"_blank\"\u003e\u003cdiv\u003e\u003cimg height=\"312px\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sa6c4245baef943f4917b6894e55c7b4es.png?width=233\u0026amp;height=312\u0026amp;hash=545\" style=\"width:233px;height:312px\" width=\"233px\"\u003e\u003c\/div\u003e\u003c\/a\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin-top:-33.48%;margin-left:75%;width:25%\"\u003e\u003ca href=\"http:\/\/www.aliexpress.com\/item\/detail\/1005002960848121.html\" target=\"_blank\"\u003e\u003cdiv\u003e\u003cimg height=\"312px\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sa6c4245baef943f4917b6894e55c7b4es.png?width=233\u0026amp;height=312\u0026amp;hash=545\" style=\"width:233px;height:312px\" width=\"233px\"\u003e\u003c\/div\u003e\u003c\/a\u003e\u003c\/div\u003e\n\n\u003cdiv 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style=\"width:233px;height:312px\" width=\"233px\"\u003e\u003c\/div\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv align=\"start\" name=\"feedback\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(0, 0, 0);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;display:block;box-sizing:border-box'\u003e \u003c\/div\u003e\n\n\u003cdiv align=\"start\" style='font-family:\"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;text-align:start;white-space:normal;color:rgb(0, 0, 0);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;display:block;box-sizing:border-box'\u003e\n\u003cdiv class=\"product-overview\" style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\n\u003cdiv class=\"product-description\" id=\"product-description\" style=\"background-color:rgb(255, 255, 255);margin:0px 0px 16px;margin-bottom:16px;margin-top:0px;margin-left:0px;margin-right:0px;padding:20px;padding-bottom:20px;padding-top:20px;padding-left:20px;padding-right:20px;overflow:hidden;width:984px;position:relative;box-sizing:border-box\"\u003e\n\u003cdiv class=\"origin-part box-sizing\" style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:content-box\"\u003e\n\u003cdiv\u003e\n\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"color:rgb(231, 76, 60)\"\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-family:\"times new roman\", times, serif'\u003eThis is a Double pointer VU meters with drive boards For 5W-50W amplifiers .\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e \u003cspan style=\"font-size:20px\"\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-family:\"times new roman\", times, serif'\u003e\u003cbr\u003e\nThe Power Supply Input is For The Backlight DC\/AC 5-12V ＞0.1A\u003cbr\u003e\nR1 And R2 Adjustable Resistance for Adjust  Pointer jump\u003c\/span\u003e\u003c\/span\u003e \u003cspan style=\"font-size:20px\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003cspan style=\"font-size:20px\"\u003e\u003cspan style=\"color:rgb(211, 84, 0)\"\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-family:\"times new roman\", times, serif'\u003ePls Notice :The Connect cable need you welding on the Driver board\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e \u003cspan style=\"font-size:20px\"\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-family:\"times new roman\", times, serif'\u003e\u003cbr\u003e\n\u003cbr\u003e\nDebugging method:\u003cbr\u003e\nMethod 1: Connect the power amplifier with the signal generator 1KHZ signal, adjust the volume of the power amplifier to the maximum, adjust the adjustable resistance, so that the meter pointer points to the 0 position\u003cbr\u003e\nMethod 2: No signal generator, you can use Android mobile phone to download the signal generator software, use the mobile phone to output 1KHZ signal to the power amplifier, adjust the power amplifier volume to the maximum, adjust the adjustable resistance, so that the meter pointer points to the 0 position\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp align=\"left\" 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