USB Charger Doctor for Voltmeter and Ammeter 5V Mini Fan for Raspberry Pi 1-inch breadboard contact points without

1-inch breadboard contact points without fraying

counter-clockwise to decrease) until your desired output voltage is displayed on the multimeter

3V to any I/O pin could damage the board

No Tools Required: Snap-together assembly with clearly numbered parts - no soldering

USB Charger Doctor for Voltmeter and Ammeter 5V Mini Fan for Raspberry Pi 1-inch breadboard contact points withoutUSB Charger Doctor for Voltmeter and Ammeter Monitor Your USB Power Like a Pro The USB Charger Doctor is a compact, inline diagnostic tool that lets you measure real time voltage and current flowing through any USB connection. Simply plug it between your USB power source and device to instantly see voltage (V) and current (A) readings on the built in digital display. Whether you're testing chargers, diagnosing slow charging issues, or monitoring power