{"product_id":"sierra-18-9801-multimeter-dva-tester-replaces-mercury-91-99750a1-tests-marine-ignition-electrical-systems","title":"Sierra Multimeter\/DVA Tester 18-9801, Replaces Mercury Marine 91-99750A1, White","description":"\u003cp\u003eThe Sierra Multimeter\/DVA Tester (18-9801) is a VOA meter with a built-in direct voltage adapter, built for testing electrical and ignition systems on Mercury ignition systems. It combines standard multimeter functions with a direct voltage adapter (DVA) circuit in a single handheld unit, letting technicians and boat owners check voltage, continuity, and ignition output without carrying separate testers. The white housing is compact, measuring 0.39 x 0.39 x 0.39 inches, and the unit is battery powered for use anywhere in the shop or at the dock.\u003c\/p\u003e\u003cp\u003eThis tester is designed as a direct replacement for the Mercury Marine 91-99750A1, so it drops into the same diagnostic role as the original Mercury tool. It is a must-have for anyone servicing Mercury ignition systems, whether troubleshooting a no-spark condition, verifying charging voltage, or checking ignition module output during a tune-up.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-9801\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e Battery Powered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Type:\u003c\/strong\u003e Multimeter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.22 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury ignition systems\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 91-99750A1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-9801 Multimeter\/DVA Tester do?\u003c\/strong\u003e It tests electrical and ignition systems, combining a VOA meter with a built-in direct voltage adapter in one handheld unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-9801 a direct replacement for a Mercury part?\u003c\/strong\u003e Yes, the Sierra 18-9801 replaces Mercury Marine part number 91-99750A1 and performs the same testing functions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a DVA function used for on this tester?\u003c\/strong\u003e The direct voltage adapter (DVA) built into the 18-9801 lets you measure ignition system voltage output directly, which a standard multimeter alone cannot read accurately on ignition circuits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-9801 tester?\u003c\/strong\u003e The 18-9801 Multimeter\/DVA Tester has a white housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-9801 powered?\u003c\/strong\u003e It is battery powered, so no external power source or charging is required to use it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-9801 tester?\u003c\/strong\u003e The unit measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-9801 Multimeter\/DVA Tester weigh?\u003c\/strong\u003e It weighs 1.22 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition systems is the 18-9801 designed to test?\u003c\/strong\u003e The Sierra 18-9801 is designed for testing Mercury ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-9801 a universal fit tool?\u003c\/strong\u003e Yes, it is listed as a universal fit tool for testing electrical and ignition systems rather than being restricted to one engine model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-9801 include only the meter, or additional accessories?\u003c\/strong\u003e The 18-9801 Multimeter\/DVA Tester unit itself is the included component.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988437414107,"sku":"SIE-18-9801","price":139.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-9801__97401.1739458890.500.750.jpg?v=1785188138","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-9801-multimeter-dva-tester-replaces-mercury-91-99750a1-tests-marine-ignition-electrical-systems","provider":"Good Vibes Marina","version":"1.0","type":"link"}