Features： 1、CONVENIENT AND HANDHELD: Handheld digital signal generator, support 3 power supply mode, more convenient to use 2、WIRING AND OUTPUT: The signal generator supports voltage and current adjustment switch with one key, and adopts independent wiring to synchronize output 3、SAFETY GUARD: The output of the signal generator has short circuit guard, the power supply has reverse connection guard, safe and dependable 4、STABLE AND CONVENIENT: The signal generator adopts pluggable terminal, support easy installation, stable performance, easy to carry 5、FLEXIBLE AND ADJUSTABLE: The signal generator supports two modes of coarse and fine tuning, adjustable winding number can be set, easy to operate 6、4 DIGIT DISPLAY: The signal generator is equipped with a 4 digit highlighting digitizer, which supports high accuracy adjustment and can calibrate the output Specification： Item Type: Current Voltage Signal Generator 3 Power supply methods, work with mobile phone charger, power bank or external 24V: External power supply DC15-30V, Power: 1W External microUSB-5V, Current: 0.2A 1. The voltage output is adjustable from 0-10V, and the accuracy after calibration is 0.05V. Maximum current 22mA 2. The current output is adjustable from 0-22mA, and the accuracy after calibration is 0.05mA. Current sampling resistance is not greater than 500ohms 3. Digital tube display 4 digits, two decimal places 4. Encoder knob 1 turn pulse count 20 Package List： 1 x Current Signal Generator 1 x USB Charging Cable 4 x Jack Test Crocodile Clip  4 x Jack Test Crocodile Clip Socket 1 x Screwdriver 6 x Terminal 1 x User Manual