Features: * Brand new and high quality * Made of high quality materials, sturdy and durable * With conventional signal input and output functions * Voltage and current have automatic output function, and three modes can be selected: single rise, single fall, and cycle. * With input and output conversion, voltage conversion active current mode, passive mode and current conversion voltage mode * The output has for customized functions, and the upper and lower limits of the output can be set arbitrarily. * Voltage input diagram, current input diagram, frame rate is 10 frames * PWM output can set frequency and duty cycle separately * Real-time curve: observe changes in voltage and current in real time * Powered by a large-capacity lithium battery and charged through a 5V type-c interface. Lithium battery capacity 3000mAh, ensuring long working time * High-definition TFT color LCD screen makes reading more eye-catching. The resolution is 240*320. Low power consumption, maximum power consumption can reach 0.32W Specification: Technical Parameters: 1. Active current output: Range: 0~24mA; Resolution: 0.01mA; Maximum load: 750; Accuracy: (0.1%+0.005) 2. Passive current output: Range: 0-24mA; Resolution: 0.01mA; External power supply up to 30V; Accuracy: (0.1%+0.005) 3. Voltage output: Range: 0-24V; Resolution: 0.01v; Maximum current 30mA; Accuracy: (0.1%+0.005) 4. 24V voltage output: drive current: 24mA; resolution: 0.01mA; accuracy: (0.1%+0.005) 5. Current input measurement: Range: 0-24mA; Resolution: 0.01mA; Input impedance: 100; Accuracy: (0.1%+0.05) 6. Voltage input measurement: Range: 0-30V; Resolution: 0.01V; Input impedance: 2M; Accuracy: (0.1%+0.05) 7. PWM output (frequency): Range: 0-9999Hz 8. Powered by a single 3.7V 3000mAh lithium battery; standby time is 26 hours; usage time depends on usage (20mA continuous output can reach 8-10 hours) 9. Working environment: 0 to 50 10. Internal reverse and overcurrent protection; Protection voltage: 30V 11. Automatic output 12. Dimensions: 112 x 82 x 27 mm/4.4 x 3.2 x 1.1 inches Package Included: 1 x signal generator 4 x alligator test clips 1 x USB charger 1 x user manual 1 x Type-C cable Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightn