{"product_id":"autometer-atm3683-sport-comp-ii-18v-digital-voltmeter-gauge","title":"AutoMeter ATM3683 Sport-Comp II 18V Digital Voltmeter Gauge","description":"Keep tabs on the health and output of your vehicles electrical system safely and accurately with AutoMeter’s ultra precise Digital Stepper Motor Voltmeter. With precise resolution and ultra smooth needle movement, this gauge operates anywhere from 8-18 volts on negative ground electrical systems. Peak value recall and a configurable warning point help you to keep your eyes on the task at hand. A direct plug in wiring harnesses included for ease of installation.\nGAUGE, VOLTMETER, 2 1\/16\", 18V, DIGITAL STEPPER MOTOR W\/PK \u0026amp; WRN, SPORT-COMP II\n\u003cul\u003e\n  \u003cli\u003eAutoMeter’s race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up\u003c\/li\u003e\n  \u003cli\u003eSet a custom alert specific to your vehicle \u0026amp; receive warning notification to highlight the need for driver attention\u003c\/li\u003e\n  \u003cli\u003eGauge kit includes wiring harness, mounting hardware, and detailed instructions for installation\u003c\/li\u003e\n  \u003cli\u003eModern white LED through-the-dial lighting provides clear visibility during nighttime use\u003c\/li\u003e\n  \u003cli\u003eAcquire data for later review with one-touch Peak Recall functionality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMonitor your vehicle’s electrical system with the AutoMeter Sport-Comp II Digital Stepper Motor Voltmeter, part number ATM3683. Designed for negative-ground electrical systems, this gauge operates across an 8–18 volt range and provides precise voltage readings with smooth needle movement.\u003c\/p\u003e\u003cp\u003eThe gauge uses a self-calibration sequence during power-up to support accurate operation. A configurable warning point provides notification when attention is needed, while Peak Recall allows one-touch review of the highest recorded value. Modern white LED through-the-dial lighting supports clear nighttime visibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Performance Benefits\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital stepper motor operation:\u003c\/strong\u003e Provides precise resolution and smooth needle movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfigurable warning point:\u003c\/strong\u003e Allows a custom alert to highlight voltage conditions requiring driver attention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak Recall:\u003c\/strong\u003e Captures the peak value for one-touch review after driving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-calibration:\u003c\/strong\u003e Performs a calibration sequence during power-up to support accurate readings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e AutoMeter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e ATM3683\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Sport-Comp II\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge type:\u003c\/strong\u003e Digital voltmeter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating range:\u003c\/strong\u003e 8–18 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical system:\u003c\/strong\u003e Negative ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighting:\u003c\/strong\u003e White LED through-the-dial lighting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Peak Recall and configurable warning point\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWhat’s Included in the Box\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVoltmeter gauge\u003c\/li\u003e\n\u003cli\u003eDirect plug-in wiring harness\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"AutoMeter","offers":[{"title":"Default Title","offer_id":68053455012092,"sku":"3683","price":239.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/eabbfa27-5192-470e-ae32-6ead4d988693-800.jpg?v=1793493576","url":"https:\/\/diycustoms.store\/products\/autometer-atm3683-sport-comp-ii-18v-digital-voltmeter-gauge","provider":"diycustoms.store","version":"1.0","type":"link"}