13-in-1 DC USB Multimeter Tester | 4.5–50V 12A OLED Type-C

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Know Exactly What Your Charger Is Doing — In Real Time Stop guessing and start knowing. This compact 13-in-1 DC USB Multimeter Tester gives you a live, crystal-clear readout of vol tage, current, power, energy, capacity, and more — all on a single 0.85-inch OLED display. Whether you're testing a fast charger, monitoring a DIY circuit, or verifying your power bank's output, this little device delivers big insight in seconds. Made in Mainland China. Why You'll Love This USB Multimeter 13 Parameters on One Screen: Simultaneously measures voltage, current, power, electrical energy, capacity (mAh), timing, temperature, current direction, max voltage/current/power, and more — no toggling needed. 0.85" OLED HD Display: Crisp, high-contrast readout that's easy to read at a glance in any lighting condition. Screen rotation via button press — 360° adjustable. Wide Measurement Range: Voltage: 4.50–50.0V (0.01V resolution) | Current: 0–12A (0.01A) | Power: 0–600W | Capacity: 0–99,999mAh | Energy: 0–9,999Wh | Temperature: 0–100°C | Timing: up to 999H 59M 59S. Fast Charge Protocol Detection: Supports PD2.0, PD3.0, PD3.1, PPS, QC2.0, QC3.0, FCP, SCP, AFC, PE, DASH, VOOC, and SuperVOOC — perfect for identifying and verifying fast-charging protocols. Two-Way Current Testing: Detect both charge-in and charge-out current directions for comprehensive circuit monitoring. Rugged CNC Metal Shell: Dustproof and drop-resistant enclosure built for workshop, bench, and on-the-go use. Plastic + metal construction for durability without added bulk. Full Interface Compatibility: Works with Type-C connections and supports virtually all major charging interfaces for broad device compatibility. 12A High-Current Terminal: Handles high-power testing scenarios with a stable, reliable 12A terminal. Two Display Page Modes: Switch between display layouts for the view that best suits your testing workflow. Specifications Voltage Range 4.50 – 50.0V (0.01V resolution) Current Range 0.00 – 12.0A (0.01A resolution) Power Calculation 0.00 – 600.00W (0.01W resolution) Capacity Accumulation 0 – 99,999mAh Energy Accumulation 0 – 9,999Wh Temperature 0 – 100°C (1°C resolution) Timing Up to 999H 59M 59S Display 0.85" OLED HD Dimensions 4.3 × 2.5 × 1.0 cm (1.69 × 0.98 × 0.39 in) Materials Plastic + CNC Metal Colors Available Multicolor / Gray Battery Included No What's in the Box 1 × DC USB Multimeter Tester Perfect For Charger testing and verification (wall adapters, power banks, car chargers) Fast-charge protocol identification (PD, QC, VOOC, and more) DIY electronics projects and circuit monitoring Battery capacity testing and energy auditing Tech enthusiasts, makers, and repair professionals Related Products You May Like 1 to 5 SATA Power Splitter Cable 18AWG | HDD SSD Extension 1-to-4 USB to Type-C Multi Charging Cable | 4-Port Power Cord For more information on electrical safety standards, visit the U.S. Consumer Product Safety Commission (CPSC), which provides guidance on the safe use of electronics and electrical testing equipment. Frequently Asked Questions Q: What fast-charge protocols does this USB multimeter tester support? A: This DC multimeter supports a wide range of fast-charge protocols including PD2.0, PD3.0, PD3.1, PPS, QC2.0, QC3.0, FCP, SCP, AFC, PE, DASH, VOOC, and SuperVOOC — making it compatible with virtually all modern fast-charging standards. Q: Does this tester work with Type-C chargers and cables? A: Yes! The tester features full Type-C interface compatibility and supports two-way current testing, so you can monitor both charge input and output through USB Type-C connections with ease. Q: How many parameters can I read at once on the OLED display? A: The 0.85-inch OLED display shows up to 13 parameters simultaneously — including voltage, current, power, energy, capacity (mAh), temperature, timing, current direction, and peak values — so you always have a complete picture of your charging session without switching screens. Q: Do I need a battery to power the USB multimeter? A: No batteries are required. The DC USB multimeter tester draws power directly from the circuit being tested, so it's always ready to use whenever you plug it in. {"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What fast-charge protocols does this USB multimeter tester support?", "acceptedAnswer": {"@type": "Answer", "text": "This DC multimeter supports a wide range of fast-charge protocols including PD2.0, PD3.0, PD3.1, PPS, QC2.0, QC3.0, FCP, SCP, AFC, PE, DASH, VOOC, and SuperVOOC — making it compatible with virtually all modern fast-charging standards."}}, {"@type": "Question", "name": "Does this tester work with Type-C chargers and cables?", "acceptedAnswer": {"@type": "Answer", "text": "Yes! 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