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KW203 USB Power Charger Current Voltage Detector Ammeter Voltmeter
KW203 USB Power Charger Current Voltage Detector Ammeter Voltmeter
KW203 USB Power Charger Current Voltage Detector Ammeter Voltmeter
KW203 USB Power Charger Current Voltage Detector Ammeter Voltmeter
KW203 USB Power Charger Current Voltage Detector Ammeter Voltmeter
KW203 USB Power Charger Current Voltage Detector Ammeter Voltmeter
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KW203 USB Power Charger Current Voltage Detector Ammeter Voltmeter

4.9 20 Reviews
$5.38

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Customer Reviews

Vorona
09/08/2017 20:24:20
This KW203 USB Current and Voltage Detector can help you master your device easily. Accurate readings, small deviation. Dual USB output ports can support charging or testing for two devices. It can easily measure the output voltage, operating current and the charge - discharge capacity of USB ( PC USB, phone chargers, car use chargers, external power supply etc. )
Suggestion:
This product can measure mah/capacity of device batteries.
mircea81
15/05/2017 17:01:01
It works great. It is one of the few that measures up to 10V (meaning that it works with Fast Charging currents - 9V). Using it, I have discovered that the Galaxy line does NOT fast charge while screen is on. Google it and you will find articles about this.
Suggestion:
Output 2 doesn't work with fast charging. 5V is top
Gre Gor (grekstasy)
28/11/2017 19:13:38
+fast shipping
+Body build quality
+works as described
+low price
+can be used for measuring voltage
Suggestion:
-cable build quality
-no cons found
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KW203 USB Current Voltage Tester Power Charger
Are you still worried about the danger of explosion when your phone is charging? Don’t worry. This KW203 USB Current and Voltage Detector can help you master your device easily. Accurate readings, small deviation. Dual USB output ports can support charging or testing for two devices. It can easily measure the output voltage, operating current and the charge - discharge capacity of USB ( PC USB, phone chargers, car use chargers, external power supply etc. ).



Features:
- KW203 USB current and voltage detector for charging and testing your device.
- Test voltage: DC 3.2 - 10V, test current: DC 0 - 3A( maximum 10A ).
- Working current is less than 20mA.
- USB extension cable: About 130mm.
- Accuracy: 1 percent ( about 2 digits ).
- Working temperature: -10 - 60 Celsius Degree.
- LED size: 0.94 x 0.39 inch.
- Small in size, convenient to carry , easy to use.
- With dual red digital screen, can display the current and voltage of power supply equipment.
- Dual output port, output I is for data transmission and charging, output II is only for charging.
- Plug and play, operation is easy, made of high quality material, durable.
- Compatible with mobile phone, tablet, PC and other USB devices.










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Vorona
09/08/2017 20:24:20
This KW203 USB Current and Voltage Detector can help you master your device easily. Accurate readings, small deviation. Dual USB output ports can support charging or testing for two devices. It can easily measure the output voltage, operating current and the charge - discharge capacity of USB ( PC USB, phone chargers, car use chargers, external power supply etc. )
Suggestion:
This product can measure mah/capacity of device batteries.
mircea81
15/05/2017 17:01:01
It works great. It is one of the few that measures up to 10V (meaning that it works with Fast Charging currents - 9V). Using it, I have discovered that the Galaxy line does NOT fast charge while screen is on. Google it and you will find articles about this.
Suggestion:
Output 2 doesn't work with fast charging. 5V is top
Gre Gor (grekstasy)
28/11/2017 19:13:38
+fast shipping
+Body build quality
+works as described
+low price
+can be used for measuring voltage
Suggestion:
-cable build quality
-no cons found
Sebastian
19/04/2018 18:10:18
I'm very happy with this purchase.
It has 2 outputs, it shows amps and volts, and the very nice think is that it is working with quick charge 9V.
Good quality!
Suggestion:
None!
Lawrence
06/07/2018 04:45:58
Good for monitoring V and A being drained into devices/ battery. Using it to monitor charging of flashlight rechargeable batteries.
Suggestion:
Suggest the USB cable attached be slightly longer.
EgorkA.
16/12/2017 09:11:16
USB детектор вольтметр -амперметр для проверки зарядных устройств. Вещь на мой взгляд очень полезная! Все соответствует описанию! Быстрая доставка.
Suggestion:
нет
Marvin
30/01/2018 23:18:54
Good USB Volage and Ampere meter. works great and the short cable is perfect to use.
Suggestion:
None
Manuel
29/08/2018 17:07:36
It is a very practical and very useful meter. It works great and I did not find any blemishes or d...
Suggestion:
Gwennael
26/06/2018 14:58:31
Utilisé pour contrôler la charge de différente batteries usb et les tensions de sorties de panneau solaire portable. franchement très pratique et évites de tuer ses batteries sans régulateur automatique
Suggestion:
aucune
Joe
09/12/2017 16:03:35
It does what is should. It does what is should. It does what is should.
Suggestion:
no
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KW203 USB Power Charger Current Voltage Detector Ammeter Voltmeter

$5.38

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