--- product_id: 201669822 title: "FancyWhoop UM24C USB 2.0 Power Meter Tester USB Multimeter Color LCD Display Voltage Current Meter Voltmeter Amperimetro Battery Charge Measure Cable Resistance with Bluetooth" brand: "fancywhoop" price: "1491185₫" currency: VND in_stock: false reviews_count: 20 category: "Kids" url: https://www.desertcart.vn/products/201669822-fancywhoop-um24c-usb-2-0-power-meter-tester-usb-multimeter store_origin: VN region: Vietnam --- # FancyWhoop UM24C USB 2.0 Power Meter Tester USB Multimeter Color LCD Display Voltage Current Meter Voltmeter Amperimetro Battery Charge Measure Cable Resistance with Bluetooth **Brand:** fancywhoop **Price:** 1491185₫ **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** FancyWhoop UM24C USB 2.0 Power Meter Tester USB Multimeter Color LCD Display Voltage Current Meter Voltmeter Amperimetro Battery Charge Measure Cable Resistance with Bluetooth by fancywhoop - **How much does it cost?** 1491185₫ with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/201669822-fancywhoop-um24c-usb-2-0-power-meter-tester-usb-multimeter) ## Best For - fancywhoop enthusiasts ## Why This Product - Trusted fancywhoop brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Product Model:UM24CProduct weight:23.47gVoltage measurement/graphing range:04.50-24.00VVoltage measurement/graphing resolution:0.01VCurrent measurement range:0.000-3.000ACurrent measurement resolution:0.001ACapacity accumulation rannge:0-99999mAhVoltage measurement accuracy:±(0.2%+1 digit)Energy sccumulation range:0-99999mWhCurrent measurement accuracy:±(0.8%+3 digit)Load impedance range:1.5-9999.9ΩTime measurement range:0-99h59min59sTemperature range:-10℃~100℃/0℉~200℉Temperature measurement error:±3℃/±6℉Auto screen off time:1-9minsDisplay screen:1.44 Inch color LCD displayQuick charge recognition mode:QC2.0/QC3.0Refresh rate:2HzProduct size:71.2mmx31.8mmx12.4mmBluetooth Indicator Light: When connected to the host computer control software, the Bluetooth indicator changes from flashing to steady state. When connecting, the Bluetooth icon is displayed on the screen.MeasurementFunction interface:1:Measurement Main Interface2:Quick Charge Recognition Interface3:Data Recording Interface4:Data Connection Cable Impedance Measurement Interface5:Voltage Graphing Interface6:Current Graphing Interface7:Settings InterfaceNOTE:1.UM24C is conmmunication version by Bluetooth connection.2. PC software only support PC window 7 and above.3, User manual, PC software installation instruction and PC software download link: http://www.mediafire.com/folder/0jt6xx2cyn7jt/UM24Package Including1 * USB 2.0 Current Voltage Test Meter Bluetooth Ver. ## Features - Physical Features: 1 Micro USB Port, 1.44 inch full color screen,Adjustable Multiple Perspectives,to Make the Display More Highlight - Electronical Features:4.5-24V0.01V(0.2%+- 2d), 0-3A 0.001A(0.8%+- 3d). - -10℃100℃/0℉200℉(±3℃/±6℉) - Functions:PC Bluetooth Communication,Quick Charger Recognition,QC2.0/QC3.0,Voltage/Current/Power Detection, Data Store,Cable Impedance Mesurement,etc. - Application in varieties of test:PC/Laptop/Desktop Computer/Mobile Phone/Power Bank/Charger/Discharge Load/Car Charger/Cable Impedance Measurement - ›See more product details ## Images ![FancyWhoop UM24C USB 2.0 Power Meter Tester USB Multimeter Color LCD Display Voltage Current Meter Voltmeter Amperimetro Battery Charge Measure Cable Resistance with Bluetooth - Image 1](https://images-na.ssl-images-amazon.com/images/I/61PmVSuvlkL.jpg) ![FancyWhoop UM24C USB 2.0 Power Meter Tester USB Multimeter Color LCD Display Voltage Current Meter Voltmeter Amperimetro Battery Charge Measure Cable Resistance with Bluetooth - Image 2](https://images-na.ssl-images-amazon.com/images/I/71oLDKDv%2B9L.jpg) ![FancyWhoop UM24C USB 2.0 Power Meter Tester USB Multimeter Color LCD Display Voltage Current Meter Voltmeter Amperimetro Battery Charge Measure Cable Resistance with Bluetooth - Image 3](https://images-na.ssl-images-amazon.com/images/I/51w0tSe5qML.jpg) ![FancyWhoop UM24C USB 2.0 Power Meter Tester USB Multimeter Color LCD Display Voltage Current Meter Voltmeter Amperimetro Battery Charge Measure Cable Resistance with Bluetooth - Image 4](https://images-na.ssl-images-amazon.com/images/I/616hG6%2B6BPL.jpg) ![FancyWhoop UM24C USB 2.0 Power Meter Tester USB Multimeter Color LCD Display Voltage Current Meter Voltmeter Amperimetro Battery Charge Measure Cable Resistance with Bluetooth - Image 5](https://images-na.ssl-images-amazon.com/images/I/51StZzfoHSL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Extremely useful measuring device for USB chargers / charging ports *by Y***. on Reviewed in the United Kingdom on 25 August 2018* I always had problems diagnosing problems with USB chargers that behaved in a weird fashion (mostly because of current limiting in the charger or the device being charged), and using a standard multimeter with it's long leads it is virtually impossible to measure the voltage/current without influencing the measurement. This little thing fits in between the charger and the lead, and shows voltage and current (and a lot more, but for basic diagnosis those two are a good start). Obviously it only works for chargers where there is a standard USB plug to plug it in to!It showed for instance that the "fast charging mode" on my phone depended on the phone's dedicated charger to supply it with 8V rather than 5V - but also that the same charger delivered 5V to other devices, so was safe. Interesting! ### ⭐⭐⭐⭐⭐ Cool. *by J***N on Reviewed in the United Kingdom on 21 July 2019* A nice little unit. I've had a basic USB meter for years but it can only pass through 5V so useless for QC2. 0 etc. This one works great and measures everything I need. Great for seeing what current my phone takes when the screen is off. ### ⭐⭐⭐⭐⭐ I Love this tool *by D***S on Reviewed in the United Kingdom on 11 May 2019* Clever, compact, neat, easy to use, and accurate enough it's very impressive and I would recommend it if you need to test USB power --- ## 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.vn/products/201669822-fancywhoop-um24c-usb-2-0-power-meter-tester-usb-multimeter](https://www.desertcart.vn/products/201669822-fancywhoop-um24c-usb-2-0-power-meter-tester-usb-multimeter) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-04-24*