{"product_id":"mini-digital-voltmeter-ammeter-dc-100v-10a-dual-led-display","title":"Mini Digital Voltmeter Ammeter DC 100V 10A Dual LED Display","description":"\n\u003ch2\u003e4-Digit Mini Digital Voltmeter \u0026amp; Ammeter — DC 100V \/ 10A Dual LED Display\u003c\/h2\u003e\n\u003cp\u003eMonitor voltage and current at a glance with this compact 4-digit, 5-wire mini digital voltmeter ammeter. Featuring a bright dual LED display, this versatile panel meter is ideal for DIY electronics projects, battery monitoring, solar systems, power supplies, and more. Its small footprint makes it easy to embed in enclosures, control panels, or test benches without sacrificing readability.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Measurement:\u003c\/strong\u003e Simultaneously displays DC voltage (0–100V) and current (0.000–9.999A) in real time\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBright 4-Digit LED Display:\u003c\/strong\u003e Approx. 0.28-inch digits for easy reading even in low-light environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Measures DC 0–100V with a working voltage of DC 4V–30V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e Only 48 × 28 mm (1.89 × 1.10 in) — fits neatly into panels and project boxes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStable \u0026amp; Reliable:\u003c\/strong\u003e Efficient circuit design ensures consistent, long-lasting performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Functions reliably from -10°C to 65°C (-14°F to 149°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5-Wire Design:\u003c\/strong\u003e Separate power supply wiring for accurate, independent measurements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMeasuring Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 0 – 100V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 4V – 30V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMeasuring Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0.000 – 9.999A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDisplay Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e~0.28 inch (4-digit LED)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-10°C to 65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e48 × 28 mm \/ 1.89 × 1.10 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWires\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5-wire configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNo\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 × Mini Digital Voltmeter \u0026amp; Ammeter Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY electronics and maker projects\u003c\/li\u003e\n  \u003cli\u003eSolar panel and battery bank monitoring\u003c\/li\u003e\n  \u003cli\u003eDC power supply testing and verification\u003c\/li\u003e\n  \u003cli\u003eRC vehicle and robotics power systems\u003c\/li\u003e\n  \u003cli\u003eCustom control panels and enclosures\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\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003e1PC 10g High Grade Silicon Grease Lubricant for O-Rings \u0026amp; Tubes\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-large-capacity-battery-storage-organizer-box-batteries-not-included-vintage-beer-crate-appearance-holds-30-aaa-batteries\"\u003e1PC Large Capacity Battery Storage Organizer Box – Holds 30 AAA Batteries\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-mobile-data-cable-storage-box-portable-winding-earphone-charger-storage-box-with-lid-drawer-organizer-box\"\u003e1PC Mobile Data Cable \u0026amp; Charger Storage Box with Lid\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage and current ranges does this mini digital voltmeter ammeter measure?\u003c\/h4\u003e\n\u003cp\u003eA: This dual LED display meter measures DC voltages from 0 to 100V and DC current from 0.000 to 9.999A (up to 10A). The working\/power supply voltage for the meter itself is DC 4V to 30V.\u003c\/p\u003e\n\u003ch4\u003eQ: Why does this meter use a 5-wire configuration?\u003c\/h4\u003e\n\u003cp\u003eA: The 5-wire design allows the meter's power supply to be independent from the circuit being measured. This prevents measurement errors that can occur when the meter shares the same ground or supply as the load, resulting in more accurate voltage and current readings.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this voltmeter ammeter suitable for AC circuits?\u003c\/h4\u003e\n\u003cp\u003eA: No — this meter is designed exclusively for DC (direct current) circuits. It is not suitable for measuring AC voltage or current. Always verify your circuit is DC before connecting the module.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I install this meter into a panel or custom enclosure?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! At only 48 × 28 mm, this compact module is specifically designed for panel mounting. It fits easily into DIY project boxes, control panels, and enclosures, making it popular for power supplies, battery monitors, and custom electronics builds.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage and current ranges does this mini digital voltmeter ammeter measure?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This dual LED display meter measures DC voltages from 0 to 100V and DC current from 0.000 to 9.999A (up to 10A). The working\/power supply voltage for the meter itself is DC 4V to 30V.\"}}, {\"@type\": \"Question\", \"name\": \"Why does this meter use a 5-wire configuration?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 5-wire design allows the meter's power supply to be independent from the circuit being measured. 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