Features Terminal port power supply, terminal port power supply voltage range: DC5‑25V, anti‑reverse connection and anti‑surge protection, maximum power consumption: 24V/50mA It can be powered by MICRO USB port, supply voltage range: DC4‑6v, maximum power consumption: 5V/250mA; it can be powered by mobile phone charger, computer USB, and power bank. Voltage type, current type output and display mode can be switched with one button through the SET button: the knob adjusts the size of the analog signal. Voltage type output load impedance requirement>2KΩ, current type output load impedance requirement<500Ω One analog output, voltage type (output range: 0/2‑10V) or current type (output range: 0/4‑20mA) can be selected Feature: 1. This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research. Specification: Item Type: Signal Generator Material: ABS Purpose: signal generator Terminal port power supply voltage range: DC5-25V (Maximum power consumption: 24V/50mA:) MICRO USB port supply voltage range: DC4-6V (Maximum power consumption: 5V/250mA) Voltage output range: 0/2-10V Current output range: 0/4-20mA Indicator light description: V (red): bright, the output is 0-10V voltage signal: flashing, output 2-10V voltage signal. mA (green): bright, output 0-20mA current signal: flashing, output 4-20mA current signal. signalinstruction MICRO USB Power supply voltage range: DC4-6V, can use mobile phone charger, computer USB, power bank to supply power. PWR Connect to DC 5~25V power supply GND Power and signal source GND Power and signal source Vo Voltage type analog output interface mAo Current type analog output interface Package List: 1 x  Signal Generator Package List 1 x Signal Generator