{"product_id":"duoyi-dy221-car-battery-tester-12v-24v-digital-automotive-alternator-meter-b0fft6llyr","title":"DUOYI DY221 Car Battery Tester, 12V 24V Digital Automotive Alternator Meter","description":"\u003carticle\u003e\u003csection\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDUOYI DY221 Car Battery Tester\u003c\/strong\u003e is a Battery Testers product. It features professional 12v\/24v battery diagnostics​​ ➤ duoyi dy221 load battery tester.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional 12V\/24V Battery Diagnostics​​ ➤ DUOYI DY221 Load battery tester Tests cranking\/charging systems \u0026amp; CCA value (100-2000) for lead-acid batteries with Kelvin 4-wire tech.– Catch issues before $500 garage bills.\u003c\/li\u003e\n\u003cli\u003e​​Advanced Safety \u0026amp; Accuracy​​ ➤ Polar reversal\/over-voltage protection + loose lead detection ensures precise readings per IEC\/EN61010-1 standards.– like $2,000 pro tools.\u003c\/li\u003e\n\u003cli\u003eUser-Friendly Operation​​ ➤ Large backlit LCD + touch-tone keys simplifies testing. Stores last results for Battery\/Cranking\/Charging tests.– faster than brewing coffee.\u003c\/li\u003e\n\u003cli\u003e​​Comprehensive Vehicle Analysis ➤ Tests cranking voltage (\u0026gt;9.6V good), charging status (13.4-14.6V normal), and ripple voltage (\u0026lt;1200mV).\u003c\/li\u003e\n\u003cli\u003e​​Essential for Auto Shops ➤ Must-have for battery sales\/repair shops, mechanics, and DIYers with GB\/SAE\/JIS\/DIN standards support.\u003c\/li\u003e\n\u003cli\u003eTest ANY Battery In-Car ➤ AGM\/GEL\/EFB? 100-2000 CCA? Motorcycles, Passenger Cars, Vans, Off-Road Vehicles, Heavy-Duty Trucks, Buses, Cranes, Tractors, Excavators, Farm Equipment, Yachts \u0026amp; Boats, Street Sweepers, Loaders \u0026amp; More,Test under hood – no wrench needed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eWhy Choose the DUOYI DY221 Car Battery Tester\u003c\/h2\u003e\n\u003cp\u003eThe DUOYI DY221 Car Battery Tester offers professional 12v\/24v battery diagnostics​​ ➤ duoyi dy221 load and ​​advanced safety \u0026amp; accuracy​​ ➤ polar reversal\/over-voltage protection. These features make the DUOYI DY221 Car Battery Tester a strong option in the Battery Testers category.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eBest For\u003c\/h2\u003e\n\u003cp\u003eThe DUOYI DY221 Car Battery Tester is best suited for everyday battery testers needs.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eQuick Summary\u003c\/h2\u003e\n\u003cp\u003eThe DUOYI DY221 Car Battery Tester is a Battery Testers product by DUOYI. Brand: DUOYI. Power Source: Corded Electric. Item dimensions L x W x H: 6.7 x 1.4 x 3.6 inches. Min. Operating Voltage: 9 Volts (DC). Specification Met: Iec\/En61010-1, Cat III 600v. Price: $32.98.\u003c\/p\u003e\u003c\/section\u003e\u003csection\u003e\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eDUOYI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003eCorded Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eItem dimensions L x W x H\u003c\/td\u003e\n\u003ctd\u003e6.7 x 1.4 x 3.6 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin. Operating Voltage\u003c\/td\u003e\n\u003ctd\u003e9 Volts (DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification Met\u003c\/td\u003e\n\u003ctd\u003eIec\/En61010-1, Cat III 600v\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/section\u003e\u003c\/article\u003e","brand":"DUOYI","offers":[{"title":"Default Title","offer_id":43473601560694,"sku":"SPH-B0FFT6LLYR","price":32.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/1570\/4438\/files\/71RWAgQM13L._SX522.jpg?v=1780551153","url":"https:\/\/brightnestappliances.com\/products\/duoyi-dy221-car-battery-tester-12v-24v-digital-automotive-alternator-meter-b0fft6llyr","provider":"BrightNest Appliances","version":"1.0","type":"link"}