جهاز يستخدم لقياس الجهد والتيار لأي شيء USB Current Meter

Dual USB current and voltage detection

والتيار لأي شيء يعمل باليو اس بي

USB

فمثلا يمكنك ان توصل به فلاشة او شاحن جوال لتعلم كم يستهلك من التيار وتراقب الجهد ايضا

USB Charger Current Voltage Charging Detector battery Tester Volt meter Ammeter

Features: 
Can easily measure the operating current of the output voltage of the USB port and equipment 2. smallsize , no power , and other ancillary equipment, plug and play also detect USB charger output voltage and current are standard suitable for factories, Laboratory and users.

Technical indicators:

Scope of work: Current (0~5A) can detect mobile phone charger voltage compliance DC5V
Operating Range : U = 3 ~ 7.5V I = 0 ~ 5A
Resolution : Voltage 10mV current 1mA
Error : voltage <± 1% current <± 2%
Full scale drop : ( When measuring current ) 200mV
The tester uses a new generation of power four semi~ double loop integral converter IC , with a precision bandgap reference , range accuracy , high precision , stable and reliable performance , strong anti~interference ability , high temperature can be used for measuring USB powered or power consumption of the interface , mobile phone charger , U disk and other products.

1, USB powered devices can be used to measure air , voltage loads , USB terminal equipment working voltage and current .
2, The current and voltage cycle , easy to use and practical.
3, Compact and easy to carry , no additional power supply