Description: Features: High accuracy, 2 decimal points, 0.01V, 0.01ma.4 digits brighter LED display, two decimal point accuracy, the output can be calibrated. Supports external 15-30V operating power supply, 5V micro usb port and built-in lithium batteryHave rough and accurate adjustment modes, rotation is set. Have one toggle button to switch between current and output voltage. Output current and voltage at the same time, the output wire terminals are independently. Have 2-wire, 3-wire, 4-wire current outputs. (active and passive support)Multiple output range: 0-3.3V, 0-5V, 1-5V, 4-20mA, 0-20mA, etc. The output range is set and programmable. Programmable multi-display mode: current voltage value display, 0- display, 0-50.0Hz display. Infinite rotation knob, high accuracy long life encorder to adjust the output. Pash more stable and accurate than potentiometer type. Small size convenient external shape: alloy knob, elegant outer case, easy to carry. Pluggable clamp wiring, very convenient to connect wires. Technical indicators1 external power supply: DC15-30V 1 W (without charging)/5 W (charging); 2 3.7V lithium battery capacity 1000mAh, maximum charging current 0.8A (SelectionConfiguration); 3 x external microUSB-5V connection: 0.2A (not charging)/1A (charging); 4 adjustable output voltage 0-10V, precision 0.01V, can be calibrated; Maximum output current 100mA, short circuit protection; 5 adjustable output current 0-22mA, precision 0.01mA, can be calibrated; 10-500 Omega sampling resistor, can be short; 6 digit digital display 4 digits, two decimals; 7, encoder knob rotate one wheel has 20 pulses; Specification: Material: Plastic, Alloy Dimensions: 100x60x25mm (3.94x2.36x0.98in) (Approx.) Color: As pictures shown. Quantity: 1 pc Note: Transition: 1cm=10mm=0.39 inchNo retail package. Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!We can provide detailed PDF version of the manual in English. for more information. Package Included: 1 x Signal Generator (Other accessories demo in the picture are not included.)