Working voltage: DC 15~27V /Mirco USB 5V 1.1CH analog output, selectable voltage type (output range 0/2-10V) or current type (output range 0/4-20MA) 2. Voltage type output load impedance requires more than 2K, current type output impedance requires less than 500 3. voltage, current output, one-key switch Indicator V (red) is , the output is 0-10V voltage signal; flashing, the output is 2-10v voltage signal mA (green) is , the output is 0-20mA current signal; flashing, the output is 4-20mA current signal Port PWR: to DC15-27V Positive power supply GND: and signal ground GND: and signal ground V0: Voltage analog output interface mA0: Current output Analog output interface Material:ABS color:As Shown Package Contents: 1 x Signal Generator Only the above package contents are included, other products are not. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.