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Description
FNB38 FNIRSI-C1 USB Tester Fast Charge Protocol Detection ToolFNB38 FNIRSI C1 Multifunction USB C Current and Voltmeter fast charging protocol capacity test QC 2. 0 QC 3. 0 PD 3. 0 Battery Capacity Tester. FNIRSI C1 USB Tester Voltage Ammeter Fast Charge Charging Power Meter Type C. FNB38 Multifunction Current And Voltage Meter USB Tester for Fast Charging Protocol Test. FNB38 current and voltage meter USB tester test meter supports QC4+ PD3. 0 2. 0 PPS fast charging protocol capacity, compatible with multiple
FNB38 FNIRSI-C1 Multifunction USB C Current and Voltmeter fast charging protocol capacity test QC 2.0 QC 3.0 PD 3.0 Battery Capacity Tester. FNIRSI-C1 USB Tester Voltage Ammeter Fast Charge Charging Power Meter Type-C.FNB38 Multifunction Current And Voltage Meter USB Tester for Fast Charging Protocol Test.FNB38 current and voltage meter USB tester test meter supports QC4+ PD3.0 2.0 PPS fast charging protocol capacity, compatible with multiple interfaces, USB-A, Micro-USB, Type-C interface, using external 16-bit ADC, PD protocol physical chip .
FNIRSI-C1 USB tester voltage ammeter fast charging charging power detection PD decoder is used for the detection and monitoring of various digital devices such as various chargers, power bank data cables, mobile phones and laptops, all mainstream protocol detection & triggering/waveforms Curve/line resistance measurement/low internal resistance/drive-free host computer upgrade, etc.
FNB38 Features:
It is a USB tester with high reliability and security for detecting the USB voltage and current as well as a mobile communication terminal with fast charge triggers.
USB 2.0 interface, 1.44 inch TFT LCD high definition display with integrated USB-A, Micro-USB, Type-C interfaces, use external 16-bit ADC, PD protocol physical chip.
Drive-free PC upgrade, PD E-Marker read, fast charge recognition, fast charge deception.
PD protocol monitoring, PD protocol conversion, precision measurement.
Data storage, intelligent recording of energy capacity detection.
One screen display, multiple interfaces compatible.
Can be used for fast charge protocol detection, QC2.0 trigger, QC3.0 trigger, for Huawei-FCP trigger, for Huawei-SCP trigger, for Samsung-AFC trigger, PD protocol trigger, and so on.
FNB38 Specification:
Material: ABS
Color: black
Input voltage: 4~24V
Resolution: 0.1mV
Accuracy: ±(0.2‰+2)
Input current: 0~5A
Resolution: 0.1mA
Accuracy: ±(0.5‰+2)
Input power: 0~120W
Resolution: 0.1mW
Accuracy: ±(0.5‰+2)
Load equivalent internal resistance: 0~9999.9Ω
Resolution: 0.1mΩ
Accuracy: ±(0.5‰+2)
D+/D- voltage: 0~3.3V
Resolution: 0.01V
Accuracy: ±(1.0%+2)
Equipment temperature:℃, ℉
Capacity: 0~9999.9mAh
Resolution: 0.0001mAh
Accuracy: for reference
Energy used: 0~9999.99Wh
Resolution: 0.00001Wh
Accuracy: for reference
Cable internal resistance: 0~9999.9Ω
Resolution: 0.0001Ω
Accuracy: for reference
Equipment runtime:
Range: 999 hours 59 minutes 59 seconds
Resolution: 1 second
Accuracy: 5 seconds / hour
Record time:
Range: 999 hours 59 minutes 59 seconds
Resolution: 1 second
Accuracy: 5 seconds / hour
FNIRSI-C1 Specification:
Monitoring voltage: 4~24V
Monitor voltage resolution: 0.00001V
Monitoring voltage accuracy: ±(0.2‰+2)
Monitoring current: 0~6.5A
Display current resolution: 0.00001A
Monitoring current accuracy: ±(0.5‰+2)
Display power: 0~130W
Display current resolution: 0.00001W
Monitoring current accuracy: ±(0.5‰+2)
Load equivalent resistance: 0~9999.9Ω
Load equivalent resistance resolution: 0.0001Ω
Load equivalent resistance accuracy: ±(0.5‰+2)
Capacity: 0~9999.99Ah
Use energy: 0~9999.99Wh
Cable resistance: 0~9999.9Ω
D+/D- voltage: 0~3.3V
D+/D- voltage resolution: 0.001V
D+/D- voltage accuracy: ±(1.0%+2)
Equipment temperature: ℃/℉
Package size: 50*25*8mm / 1.97* 0.98 * 0.31in
Notes!! Compatibility Issues:
There may be incompatibilities problems of the PC software with some Windows systems, if you really need it, please install and test the software before buying the product.
There are many types of mobile phones and operation systems, so there may be incompatibilities, if you need APP, please install and test the APP before buying the product.
If you don't test the PC software and APP function before buying and find that the products work fine except the PC software or APP, we refuse to refund.
Please do install and test the APP if you use Samsung mobile phone.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Finally sleeping through the night without waking up drenched
I was dealing with night sweats almost every night. Waking up overheated, flipping my pillow over constantly, just uncomfortable and restless. It was starting to mess with my sleep in a real way.
Since switching to this cooling pillowcase (and pairing it with a cooling blanket), it’s been a completely different experience. I’m actually staying cool through the night and not waking up soaked or irritated.
The fabric feels cool to the touch right away and doesn’t trap heat like a regular pillowcase. It’s smooth, comfortable, and still feels good after washing. Not stiff or weird like some “cooling” materials can be.
Is it magic? No. But does it noticeably reduce overheating and help you sleep better? Absolutely.
If you run hot at night or deal with night sweats, this is one of those small upgrades that makes a big difference. I wish I had bought it sooner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 5
so far so good
I was surprised at this pair of pillow cases only because the material seemed impossible to be cooling - it's that weird polyester blend. So far I have not awoken feeling sweaty around my face and scalp. I don't recall what I originally paid but I think it is great value for money! If you are sensitive to out of the box smell, I washed mine first and it didn't impede on the efficacy of the cooling!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
It’s like sleeping on a beach in San Vito lo Capo
Italian voice:
I’m a big meaty fella so I put off a lot of heat ya hear. These pillow cases have changed my life. One moment they’re hot and the next you flip them and you’re blasted with a blast of ice cool what it feels like to chew 5 gum feeling capeesh. I would reccomend these pillow cases to even my grandma. If ya wanta get a rest so good that it feels like ya been sleeping with the fishes get these pillow cases, they’re the real deal. Then stop at Pauline’s joint and grab a slice of pizza say Vinnie sent ya. Anyways I gotta go my wife’s cooking up a mean lasgna and we’re gonna watch the dodgers. Let me know how these treat ya I guarantee they will change your life. Vinnie out
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Reviewed in the United States on February 15, 2026
★★★★★ 4
Soft "cooling" case.
Yes it is very cool when you lay on it. It doesn't stay cold though. Within a minute or 2 to whatever your temp is.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 25, 2025
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