--- product_id: 130993930 title: "AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester" brand: "deegoo-fpv" price: "$2.59" currency: USD in_stock: false url: https://www.desertcart.ec/products/130993930-at34-usb-3-0-tester-usb-power-meter-30v-4a store_origin: EC region: Ecuador --- # 30V/4A high-current USB testing 0.96-inch IPS color display Built-in thermometer with °C/°F AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester **Brand:** deegoo-fpv **Price:** $2.59 **Availability:** ❌ Out of Stock ## Summary > ⚡ Power up your USB IQ with precision and style! ## Quick Answers - **What is this?** AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester by deegoo-fpv - **How much does it cost?** $2.59 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/130993930-at34-usb-3-0-tester-usb-power-meter-30v-4a) ## Best For - deegoo-fpv enthusiasts ## Why This Product - Trusted deegoo-fpv brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Vivid IPS Display:** Crystal-clear 0.96-inch color screen with 160° wide viewing angle keeps all key metrics visible at a glance. - • **Smart Data Retention:** Power-off storage saves capacity and energy data so you never lose critical test results mid-measurement. - • **Charger Quality Analyzer:** Instantly evaluate charger performance by comparing voltage drops under load—know which chargers truly deliver. - • **Precision Power Insights:** 4-bit accuracy ensures ultra-precise voltage, current, and capacity readings for your USB devices. - • **Universal USB 3.0 Compatibility:** Seamlessly test USB 2.0 & 3.0 devices including fast-charge protocols like QC2.0/3.0 and iPhone/Android standards. ## Overview The AT34 USB 3.0 Tester is a compact, high-precision multimeter designed for professionals and tech enthusiasts to measure voltage, current, capacity, power, and temperature of USB devices. Featuring a vibrant IPS color display and compatibility with USB 2.0/3.0 and fast charge protocols, it offers advanced diagnostics including charger quality analysis and power-off data retention for reliable, on-the-go testing. ## Description Technical Parameters: Model: AT34 Measuring voltage: 3.7-30V Measuring current: 0-4A Capacity measurement range: 0-99999mAh Energy measurement range: 0-99999mAh-999.99Wh Load impedance measurement range: 1Ω-9999.9Ω Temperature measurement range: 0°C-80°C / 32°F-176°F Operating temperature range: 0°C-45°C / 32°F-113°F Product size: 64mmx22mmx12mm Display screen: 0.96 inch color LCD Voltage measurement resolution: 0.01V Current measurement resolution: 0.001A Voltage measurement accuracy: ± (0.8% + 4 words) 25 ° C Current measurement accuracy: ± (1% + 4 words) 25 ° C Power measurement range: 0-120W Temperature measurement error: ±3°C / ±6°F Refresh rate: 2HzQuick charge recognition mode:QC2.0、QC3.0、2.4A/2.1A/ 1A/0.5A、Android DCP ;Applications: Testers are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts. Real-time detection of the state of charge of the appliance, voltage, current, power and other indicators at a glance; Fast charge recognition, widely compatible:can for QC2.0, QC3.0,for APPLE 2.4A/2.1A/1A/0.5A,for Andriod DCP and for SAMSUNG, fast charge protocol identification, let you know the state of charge of the phone . Power-off storage, data is guaranteed: AT34 has power-off storage function, which can store capacity and energy data when the mobile power is cut off, which is convenient for subsequent viewing and convenient for capacity energy measurement of mobile power. USB 3.0 interface: Compatible with USB 2.0, support high current test, support USB3.0 interface mobile hard disk and U disk test. Package Including 1 * AT34 USB Tester ## Features - 4-bit accuracy for more accurate measurements; Measure the load equivalent impedance and power; Thermometer function, Celsius and Fahrenheit free switching: Using high-precision thermistor sensor; USB 3.0 interface: Compatible with USB 2.0, support high current test, support USB3.0 interface mobile hard disk and U disk test. - The AT34 uses a 0.96-inch IPS high-definition color LCD display to display the state of charge of the appliance, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators at a glance. 160 degree wide viewing angle, high brightness and long working life. Fast charge recognition, widely compatible: AT34 supports QC2.0, QC3.0,for i Phone 2.4A/2.1A/1A/0.5A, for Andriod DCP, fast charge protocol identification, let you know the state of charge of the phone. - Power-off storage, data is guaranteed: AT34 has power-off storage function, which can store capacity and energy data when the mobile power is cut off, which is convenient for subsequent viewing and convenient for capacity energy measurement of mobile power.Note: Other USB testers that do not have a power-down storage function cannot test capacity and energy. - Measure the quality of the charger: connect the same load, compare the no-load and the load, the greater the voltage drop, the worse the charger capacity is, the worse the quality; the voltage drop is not obvious or the voltage rises (leisure loss) Compensation function) The better the load capacity of this charger, the better the quality. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07PWC7YMT | | Best Sellers Rank | #1,160,361 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,083 in Voltage Testers | | Brand Name | Deegoo-FPV | | Color | Black, Blue | | Customer Reviews | 4.6 4.6 out of 5 stars (242) | | Item Dimensions | 2.52 x 0.87 x 0.47 inches | | Item Weight | 0.01 Ounces | | Manufacturer | Deegoo-FPV | | Measurement Type | Ammeter, Multimeter, Voltmeter | | Minimum Operating Voltage | 3.7 Volts | | Model | AT34 | | Style Name | 1pcs AT34 | | UPC | 608603912432 | | Upper Temperature Rating | 45 Degrees Celsius | ## Product Details - **Brand:** Deegoo-FPV - **Color:** Black, Blue - **Item Weight:** 0.01 Ounces - **Item dimensions L x W x H:** 2.52 x 0.87 x 0.47 inches - **Style:** 1pcs AT34 ## Images ![AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester - Image 1](https://m.media-amazon.com/images/I/41DBIbgxOnL.jpg) ![AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester - Image 2](https://m.media-amazon.com/images/I/612JcK2+LaL.jpg) ![AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester - Image 3](https://m.media-amazon.com/images/I/61XJgYOCX1L.jpg) ![AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester - Image 4](https://m.media-amazon.com/images/I/61bSNDcMbEL.jpg) ![AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester - Image 5](https://m.media-amazon.com/images/I/71URRjpYxzL.jpg) ## Available Options This product comes in different **Style** options. ## Frequently Bought Together - AT34 USB 3.0 Tester,USB Power Meter 30V 4A USB Voltage Tester Multimeter Digital Multimeter Current Tester Voltmeter Ammeter IPS Color Display Capacity Power USB Charger Tester - DROK USB Tester, USB-A 2.0 Digital Multimeter Dual USB Output Ports PD QC 3.0 Color LED Display, 7 Modes Capacity Voltage Current Power Voltmeter Ammeter for Laptop Power Bank Solar Panel - USB C Tester,KJ-KayJI 2 in 1 Tester Color Screen IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with USB Clip Cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ec/products/130993930-at34-usb-3-0-tester-usb-power-meter-30v-4a](https://www.desertcart.ec/products/130993930-at34-usb-3-0-tester-usb-power-meter-30v-4a) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-07-12*