The power source is automatically selected as the highest voltage source
AMS1117 1A Voltage Regulator is an adjustable and fixed voltage regulator designed to provide up to 1A output current and to operate down to 1V input-to-output differential
Each channel has screw terminals: COM
providing an efficient and user-friendly solution for data logging applications
Adjustment: Activation threshold can be adjusted via the onboard multi-turn potentiometer
UT118B PEN TYPE DIGITAL MULTIMETER SD Card Module The power source is automaticallyMeasurement Category CAT III Test Measurement Functions Resistance, AC Voltage, DC Voltage, Capacitance, Diode Test Number of Counts 2999 Maximum Input Voltage 600V AC Voltage Range 3V 30V 300V Input Protection Features Diode Bridge, Shunt Resistor, Thermistor (PTC) Display Digital Form Factor Handheld Protection Against Solids Not Protected Features Auto Ranging, Backlight, Auto Power Off, Data Hold, Min Max Value Mode DC Voltage Range 3V 30V 300V