What is the current consumption of the meter itself?

The usb meter uses about 16mA and 7mA with display off.

What’s the difference between at34 and at35?

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

Does it allow data to pass while using it monitor power to a mobile phone? Like plugged a mobile phone plugged into a pc?

The current can be checked when the mobile phone is connected to the product while in use.

Can usb data pass through? (found my existing usb power meter doesn't.)

Signal cables are straight through, you can use usb data.

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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

Product ID: 277077874

Details

Brand
MakerHawk
Colour
Black
Item weight
14 Grams
Power source
Battery
Style
Voltage Tester

⚡3.7-30V voltage range

📊0.96-inch IPS color display

🔋0-4A current measurement

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Description

⚡ Charge Smarter, Test Faster, Stay Ahead!

DATA RETENTION TECH - Power-off storage saves capacity & energy data, so you never lose critical test info.
WIDE USB 3 0 SUPPORT - Backwards compatible with USB 2.0, perfect for high-current tests on modern devices and storage.
THERMAL LOAD ANALYSIS - Integrated thermometer & load impedance measurement to assess device health beyond the basics.
PRECISION POWER INSIGHTS - Real-time voltage, current, power & capacity monitoring for ultimate device diagnostics.
FAST CHARGE COMPATIBILITY - Seamlessly supports QC2.0, QC3.0, iPhone & Android fast charge protocols—know your charge status instantly.

The MakerHawk USB 3.0 Tester AT34 is a compact, high-precision multimeter designed for professionals and tech enthusiasts. It measures voltage (3.7-30V), current (0-4A), capacity, power, and temperature with a vibrant 0.96-inch IPS color display. Featuring fast charge protocol recognition, power-off data storage, and USB 3.0 compatibility, it delivers comprehensive diagnostics for USB-powered devices, ensuring you never miss a beat in device performance and charger quality.

Specifications

ASIN	B07FMQZVW2
Best Sellers Rank	#116,056 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #571 in Multi Testers
Brand Name	MakerHawk
Color	Black
Customer Reviews	4.6 4.6 out of 5 stars (1,032)
Item Dimensions	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
Part Number	02
Power Source	Battery Powered
Specification Met	3c
Style Name	Voltage Tester
UPC	192684493640
Unit Count	1 Count
Upper Temperature Rating	113 Degrees Fahrenheit

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