{"product_id":"waterproof-dc-4-100v-led-digital-voltmeter-vehicle-battery-monitor","title":"Waterproof DC 4-100V LED Digital Voltmeter – Vehicle Battery Monitor","description":"\u003ch2\u003eWaterproof DC 4-100V LED Digital Voltmeter Panel – Car, Motorcycle \u0026amp; Multi-Vehicle Voltage Monitor\u003c\/h2\u003e\n\u003cp\u003eStay in control of your vehicle's electrical system with this compact, waterproof \u003cstrong\u003eDC Digital Voltmeter\u003c\/strong\u003e. Designed for cars, motorcycles, boats, buses, and trailers, this panel-mount gauge delivers real-time battery voltage readings at a glance — so you're never caught off guard by a failing battery.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Measurement Range:\u003c\/strong\u003e Accurately reads DC 4–100V with a ±1% allowable tolerance, making it compatible with most 12V, 24V, and 48V vehicle and battery systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBright LED Display:\u003c\/strong\u003e Three-digit LED readout available in red, blue, or green — blue and green LED options are especially vivid in outdoor and bright-light conditions for effortless reading at a glance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWaterproof \u0026amp; Durable Build:\u003c\/strong\u003e Constructed from ABS and flame-retardant materials, this voltmeter is wear-resistant, weatherproof, and built to withstand demanding environments, from engine bays to open decks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReverse Connection Protection:\u003c\/strong\u003e Built-in reverse polarity protection prevents damage from accidental incorrect wiring, keeping both your gauge and your vehicle's electronics safe.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Refresh Rate:\u003c\/strong\u003e Updates every ~300ms for near real-time voltage monitoring, so you always have the most current reading.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Panel Mount:\u003c\/strong\u003e 30mm mounting hole diameter and a short 20cm lead make installation clean and straightforward in dashboards, control panels, or toolboxes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Rated from -30°C to +65°C, this voltmeter performs reliably year-round in all climates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; Lightweight:\u003c\/strong\u003e Small enough to store in a glove box, trunk, or toolbox as a quick-check backup tool.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasuring Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 4–100V (direct measurement)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±1%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-digit LED (Red \/ Blue \/ Green)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefresh Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~300ms\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS + Flame Retardant\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~33.8 × 33.8 × 18 mm (1.33 × 1.33 × 0.71 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~20 cm (7.87 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Hole\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 mm (1.18 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-30°C to +65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Automotive LED Digital Voltmeter Gauge\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/60cm-motorcycle-luggage-strap-elastic-helmet-bungee-net\"\u003e60cm Motorcycle Luggage Strap – Elastic Helmet Bungee Net\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.fueleconomy.gov\/feg\/drive.shtml\" target=\"_blank\" rel=\"noopener\"\u003eFuelEconomy.gov driving efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What vehicles is this DC digital voltmeter compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This waterproof voltmeter is suitable for any DC-powered vehicle or system operating within the 4–100V range, including cars, motorcycles, buses, boats, ships, trailers, and RVs. It's also useful for monitoring solar panels, battery banks, and other DC electrical systems.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I install the panel-mount voltmeter?\u003c\/h4\u003e\n\u003cp\u003eA: Installation is straightforward — drill or use an existing 30mm hole in your dashboard, control panel, or enclosure, insert the voltmeter, and connect the two leads directly to your DC power source. The short 20cm leads make for a tidy, clean fit. Always ensure correct polarity; reverse connection protection is included as a safety backup.\u003c\/p\u003e\n\u003ch4\u003eQ: What LED display color should I choose?\u003c\/h4\u003e\n\u003cp\u003eA: All three colors (red, blue, and green) are clearly visible, but blue and green LED displays offer greater brightness and contrast in outdoor or high-ambient-light conditions. Red is a classic choice for interior dashboard use. Choose the color that best suits your installation environment.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this voltmeter truly waterproof?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the voltmeter is built from ABS and flame-retardant materials and is designed to be waterproof, making it suitable for use on boats, motorcycles, and in exposed outdoor installations where it may be exposed to rain or moisture.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What vehicles is this DC digital voltmeter compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This waterproof voltmeter is suitable for any DC-powered vehicle or system operating within the 4–100V range, including cars, motorcycles, buses, boats, ships, trailers, and RVs. 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Choose the color that best suits your installation environment.\"}}, {\"@type\": \"Question\", \"name\": \"Is this voltmeter truly waterproof?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — the voltmeter is built from ABS and flame-retardant materials and is designed to be waterproof, making it suitable for use on boats, motorcycles, and in exposed outdoor installations where it may be exposed to rain or moisture.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Waterproof DC 4-100V LED Digital Voltmeter – Vehicle Battery Monitor\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/waterproof-dc-4-100v-led-digital-voltmeter-car-vehicle-battery-monitor\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"red","offer_id":43692118212669,"sku":"14:200004889#red","price":12.84,"currency_code":"USD","in_stock":true},{"title":"green","offer_id":43692118245437,"sku":"14:200004890#green","price":13.35,"currency_code":"USD","in_stock":true},{"title":"blue","offer_id":43692118278205,"sku":"14:200004891#blue","price":12.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/3439\/0333\/files\/Sadcb229f94e340c690c2e8d0e313b434h.webp?v=1790174867","url":"https:\/\/qtiply.com\/products\/waterproof-dc-4-100v-led-digital-voltmeter-vehicle-battery-monitor","provider":"QTP","version":"1.0","type":"link"}