Recursos:1. It has 0.91inch OLED screen design.2. It is so lightweight which is so portable to be taken.3. Protecting the environment and low power consumption.4. Over and under-voltage remind for safe use.5. Perfect tool useful, helpful and so practical. Easy to use and operate at affordable prices.Descrição:Este é o mini USB metro. It can measure voltage, current, power and capacitance.Especificações:Working range: The current (0-2.5A) detects whether the voltage of the mobile phone charger can reach the standard DC5VÁrea de trabalho: U=3~7.5V I=0~2.5AResolution: voltage 10mV, current 10mA<±1% current±2%Full-scale voltage drop: 200mV (when measuring current)Working temperature: 0-60Product size: 53*35*14mmIncluído no Pacote:1 * USB Current Voltage Capacity TesterNotas:1. Please allow 0-1 inch error due to manual measurement. Obrigado pela sua compreensão.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.