hiBCTR 3-Piece DC-DC CNC USB Step Up/Down Power Supply Regulator Module 3.5V-12V to 1.0V-24V 2-3W, Adjustable Boost Buck Voltage Converter Digital Display Voltmeter Ammeter Battery Capacity Tester

Power Supply System (PER)
There are 3 input interfaces: USB, micro USB, and Type-C. When inputting through any interface, under the Power Supply System (PER), you can output an adjustable voltage ranging from 1.0V to 24V with a power of 2 - 3W.
Note: This is a low-power supply, do not exceed the maximum output power. ^^ Multimeter System (VA) The CNC USB power regulation module can measure voltage, current, power, capacity, and time like a multimeter. It can also test the current ambient temperature within the range of -20C to 70C. ^^ Multiple Protection Functions There is an under-voltage protection (LVP) when the voltage is 0.8V; an over-current protection (OCP) when the input current is 2A; and an over-power protection (OPP) when over-power is used. After protection, the output will be automatically turned off, the LCD backlight will flash, and the corresponding protection function (LVP, OCP, OPP) will be displayed. ^^ Small Size and Portability With a small dimension of 78 * 28 * 17 mm and anti-crush packaging, it is very suitable for technical engineers to carry during business trips and maintenance. ^^ Applications It can measure voltage and current like a multimeter and also test power, capacity, time, and temperature. For more details and instructions, please read the user manual!!!