--- product_id: 277077874 title: "MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34" brand: "makerhawk" price: "FREE" currency: NOK in_stock: false reviews_count: 5 category: "Maker Hawk" url: https://www.desertcart.no/products/277077874-makerhawk-usb-3-0-tester-usb-power-meter-3-7 store_origin: NO region: Norway --- # 3.7-30V voltage range 0.96-inch IPS color display 0-4A current measurement MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 **Brand:** makerhawk **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > ⚡ Empower Your USB Testing Game — Know Your Power, Own Your Tech! ## Quick Answers - **What is this?** MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 by makerhawk - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/277077874-makerhawk-usb-3-0-tester-usb-power-meter-3-7) ## Best For - makerhawk enthusiasts ## Why This Product - Trusted makerhawk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Wide USB 3.0 Support:** Test USB 3.0 & 2.0 devices including mobile HDDs with high current support for versatile use. - • **Thermal & Load Analysis:** Monitor device temperature & load impedance to ensure optimal charger quality and safety. - • **Power-Off Data Retention:** Automatically saves capacity & energy data on shutdown—your testing history, always intact. - • **Precision Power Insights:** Track voltage, current, power & capacity with ±1% accuracy for pro-grade diagnostics. - • **Fast Charge Compatibility:** Seamlessly identify QC2.0, QC3.0, iPhone & Android fast charge protocols—never miss peak performance. ## Overview The MakerHawk USB 3.0 Tester AT34 is a compact, high-precision multimeter designed for digital professionals and tech enthusiasts. Featuring a vivid 0.96-inch IPS color display, it measures voltage (3.7-30V), current (0-4A), power, capacity, energy, temperature, and load impedance in real-time. Compatible with USB 3.0 and fast charge protocols like QC2.0/3.0 and iPhone/Android standards, it offers power-off data storage for uninterrupted tracking. Ideal for quality inspection of chargers and USB devices, it delivers reliable, accurate diagnostics to optimize your charging ecosystem. ## 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: 2Hz 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: AT24 supports QC2.0, QC3.0, i Phone 2.4A/2.1A/1A/0.5A, 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. 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 Review: Consommation de mes appareils connectés sur le 5 VDC. - Bien utiles pour les initiés et autres curieux. J-M Coutaud. Review: Perfect tool to see how usb devices perform - I received 2 of these for Christmas 5 months ago. I am in no way associated with the company, I just found a good product and would like others to know. Features: you can turn off the screen, change between °C and °F, it records how much power was used, you can access multiple records of power usage, data transfer is unaffected. It reads between 3.6V to 5.4V (so far), however the screen turns black when usb-c fast charge exceeds ~6V, though it is very temporary and limits 9V to 5v usb-c. In general, the amps (blue) read between .001 to 2.8, yet to see 3+. The higher the amps are, the faster the charger. I use it to determine how much power many different chargers use, both in amperage and watt-hours of capacity. I also use it to find the best angle to place my usb solar panel, which is often straight up on a cloudy day. It is seated well in the housing, not wiggling or sliding around like my green thumb drive(hence the glue). It also comes with a usb plastic cap for the male end, and a folding plastic case, though it’s durable and I carry it without the case to save space. This is accurate, i tested it with a 22Ω+ 10Ω resistor in series to make a higher wattage 32Ω resistor, along with an ohms law calculator to compare. The meter read 32.2-32.4 ohms, which is very respectable (usb cable has a little resistance) and the other math checks out as well. I read how some have inaccurate meters, but I guess it’s been fixed since then. Overall, if you want to check how fast something charges, what voltage your charger is at(safety shut-off), how much power is consumed, and even the resistance of your charger+battery, then this is the meter for you. (Yes, that does seem kinda staged like an ad, but it is a good product) ## Features - Guide Video: 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; Measuring voltage: 3.7V-30V; measuring current: 0-4A. - 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: AT24 supports QC2.0, QC3.0, i Phone 2.4A/2.1A/1A/0.5A, 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. - 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. - 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 | B07FMQZVW2 | | Best Sellers Rank | #147,183 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #672 in Multi Testers | | Brand | MakerHawk | | Brand Name | MakerHawk | | Color | Black | | Colour | Black | | Compatible Devices | USB devices | | Customer Reviews | 4.6 out of 5 stars 1,034 Reviews | | Item Dimensions | 6.4 x 2.2 x 1.2 centimeters | | Item Weight | 14 Grams | | Item dimensions L x W x H | 6.4 x 2.2 x 1.2 centimeters | | Item weight | 14 Grams | | Manufacturer | MakerHawk | | Maximum Operating Voltage | 30 Volts | | Measurement Type | Ammeter, Multimeter, Voltmeter | | Minimum Operating Voltage | 3.7 Volts | | Model | 02 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 02 | | Power Source | Battery Powered | | Power source | Battery Powered | | Specification Met | 3c | | Style | Voltage Tester | | Style Name | Voltage Tester | | UPC | 192684493640 | | Unit Count | 1 Count | | Upper Temperature Rating | 113 Degrees Fahrenheit | ## Product Details - **Brand:** MakerHawk - **Colour:** Black - **Item weight:** 14 Grams - **Power source:** Battery Powered - **Style:** Voltage Tester ## Images ![MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 - Image 1](https://m.media-amazon.com/images/I/6185i8jFTzL.jpg) ![MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 - Image 2](https://m.media-amazon.com/images/I/61awzAAH5AL.jpg) ![MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 - Image 3](https://m.media-amazon.com/images/I/61wgZfwB1lL.jpg) ![MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 - Image 4](https://m.media-amazon.com/images/I/61I3oWYQFeL.jpg) ![MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 - Image 5](https://m.media-amazon.com/images/I/71fs4aiShgL.jpg) ## Questions & Answers **Q: What is the current consumption of the meter itself?** A: The usb meter uses about 16mA and 7mA with display off. **Q: What’s the difference between at34 and at35?** A: At34 = 4 digits total (ex : 05.01v) AT35 = 5 digits total (ex : 05.011v) There’s no real guarantee the last digits are remotely accurate. So get what’s cheap. Use it. When it burns out (like all cheap electronics) get another one. Done **Q: Does it allow data to pass while using it monitor power to a mobile phone? Like plugged a mobile phone plugged into a pc?** A: The current can be checked when the mobile phone is connected to the product while in use. **Q: Can usb data pass through? (found my existing usb power meter doesn't.)** A: Signal cables are straight through, you can use usb data. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Consommation de mes appareils connectés sur le 5 VDC. *by A***C on 6 November 2023* Bien utiles pour les initiés et autres curieux. J-M Coutaud. ### ⭐⭐⭐⭐⭐ Perfect tool to see how usb devices perform *by R***O on 12 May 2024* I received 2 of these for Christmas 5 months ago. I am in no way associated with the company, I just found a good product and would like others to know. Features: you can turn off the screen, change between °C and °F, it records how much power was used, you can access multiple records of power usage, data transfer is unaffected. It reads between 3.6V to 5.4V (so far), however the screen turns black when usb-c fast charge exceeds ~6V, though it is very temporary and limits 9V to 5v usb-c. In general, the amps (blue) read between .001 to 2.8, yet to see 3+. The higher the amps are, the faster the charger. I use it to determine how much power many different chargers use, both in amperage and watt-hours of capacity. I also use it to find the best angle to place my usb solar panel, which is often straight up on a cloudy day. It is seated well in the housing, not wiggling or sliding around like my green thumb drive(hence the glue). It also comes with a usb plastic cap for the male end, and a folding plastic case, though it’s durable and I carry it without the case to save space. This is accurate, i tested it with a 22Ω+ 10Ω resistor in series to make a higher wattage 32Ω resistor, along with an ohms law calculator to compare. The meter read 32.2-32.4 ohms, which is very respectable (usb cable has a little resistance) and the other math checks out as well. I read how some have inaccurate meters, but I guess it’s been fixed since then. Overall, if you want to check how fast something charges, what voltage your charger is at(safety shut-off), how much power is consumed, and even the resistance of your charger+battery, then this is the meter for you. (Yes, that does seem kinda staged like an ad, but it is a good product) ### ⭐⭐⭐⭐⭐ Excelente *by M***A on 29 December 2022* Trabaja muy bien. ## Frequently Bought Together - MakerHawk USB 3.0 Tester, USB Power Meter, 3.7-30V 0-4A Voltage Tester Multimeter, USB Current Meter Tester, IPS Color Display Voltmeter Ammeter, USB Charger Tester AT34 - MakerHawk Type-C USB Tester Voltmeter Meter USB Multimeter Voltage and Current Tester 0-5A 4-30V USB Power Meter Multi-Function Tester Color Display Capacity Voltage Current Detector (V1) - Eversame 2 in 1 Type C USB Tester Color Screen LCD Digital Multimeter, USB C Voltage Current Voltmeter Amp Volt Ammeter Detector USB Cable Charger Indicator DC3.6-30V/0-5.1A --- ## 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.no/products/277077874-makerhawk-usb-3-0-tester-usb-power-meter-3-7](https://www.desertcart.no/products/277077874-makerhawk-usb-3-0-tester-usb-power-meter-3-7) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-10-12*