





Item Descriptions:
size:
USB goods
Key button short press
1 time: Switch information display screen
Please do the following operation on the screen where "Electric" is displayed.
2 times: Ah reset
3 times: Wh reset
4 times: Reset the count up timer
5 times: Timer setting mode (1 - 24 h / AUTO / Always ON) → missed mode with no operation for several seconds
Press and hold for data reset
Display contents: Voltage / Current / Power / Integrated current amount / Integrated electric energy amount / Connection time / Resistance value / Off timer / Main body temperature
Measurement range and unit (display unit and number of digits are different depending on screen)
Voltage: 3 to 30 V (measurement unit: 0.01 V)
Current: 0 to 5.1 A (measurement unit: 0.01 A)
Integrated current amount: 0 to 99999 mAh (measurement unit: 0.001 Ah)
Integrated electric energy: 0 to 999999 mWh (measurement unit: 0.001 Wh)
Power: 0 to 299.999 W (measurement unit: 0.001 W)
Connection time: 0 to 999 hours 59 minutes 59 seconds (measurement unit: 1 second)
Operating temperature range: -10 to 60 ° C
Support range: QC 2.0, QC 3.0, BC 1.2, Apple voltage range
Supports USB 2.0 / 1.1 standard
Connector shape
Power supply side: USB 2.0 Standard-A male reversible
Peripheral side: USB 2.0 Standard-A female
Size: W24 × D65 × H14 mm (excluding the button)
Material: Plastic
Color: Clear Black
USB current voltage checker
, The best combination of cable, battery etc!
Performance may change greatly with a combination of mobile battery, USB charger, and cable to charge smartphones and tablets.
I can not confirm the output side capability, the voltage that can be flown by the cable, etc, but I can check with the numerals clearly using this measuring instrument.
Have you ever felt that charging speed is different depending on the USB port and cable you use?
Or are you concerned about the operation of the USB battery?
With this USB doctor, it is possible to measure the voltage and current value from the port.
【Notes】
Please refrain from using for important communication devices and devices that exchange large amounts of data
Be sure to back up the various memory of the connected device before use.
Before installing, please take dust and dust on the equipment body well.
If it is attached with dust, there is a risk that the main body will be scratched.
Please be careful when dropping, etc. when attaching, removing.
It is not adjusted to the current value / voltage value that exceeds the charger's performance or equipment requirements.
Since the size and weight of the product are all measured, there may be some errors depending on the product.
It may differ slightly from the color of the real thing due to the lighting of the photography and the adjustment of the image processing.
Please note on your purchase beforehand.
Features:
Product information:
Shipping Weight: 40 g
Package Dimensions: 2.90 x 8.89 x 10.39 cm
SHIPPING METHOD
Delivered directly from Japan by Japan Post. It will take 3 to 5 business days to prepare the order for shipping. We guarantee careful packing and safe shipping.Please note that in some cases additional import or VAT charges may incur and have to be borne by the client.
1. Japanpost registered mail
Shipment by Japanpost Registered Mail (Standard). Trackable any time with tracking number. Insurance is not available. Delivery time usually is between 1-3 weeks from the date of dispatch. Some items are not eligible for Standard Shipping.
2. Qxpress Standard
Shipment by Qxpress standard service. Trackable at any time with tracking number. Registered and insured up to a value of item price and shipping fees.Delivery time is usually between 5-10 business days from the date of dispatch.
3. EMS
Shipment by Expedited Mail Service. Trackable at any time with tracking number. Registered and insured up to a value of $200 and usually delivered in 2-6 business day from the date of dispatch.

| Japanpost registered mail | Qexpress | EMS | |
|---|---|---|---|
| Shipping Method | Japanpost Registered Mail (Standard) | Standard Qexpress | EMS (Expedited Mail Service) |
| Trackable | Yes | Yes | Yes |
| Insured | N/A | Yes (Up to item price and shipping fees) | Yes (Up to $200.00) |
| Asia | 1-3 weeks | 5-10 days | 2-5 days |
| Oceania; North America; Central America and the Middle East | 2-4 weeks | 6-14 days | 2-6 days |
| Europe | 2-4 weeks | 6-16 days | 3-8 days |
| South America and Africa | 2-4 weeks | 10-18 days | 4-8 days |
NOTICE:
"According to Qoo10 guide line,overseas shipping fees will be charged to you extra if you choose Qxpress standard shipping.We recommend you to compare the total price of your purchase with EMS."
