Feature: 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 for simultaneous output. 3. SAFETY PROTECTION: The output of the signal generator has short circuit protection, the power supply has reverse connection protection, safe and reliable. 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 Sampling Channel: Two analog output channels, one 0-10V voltage signal, and one 0-22mA current signal. Channel Feature: Voltage and current regulation with one click switching, independent wiring, and simultaneous output. Current output 2, 3, and 4 wire active and passive fully compatible. Power Supply Protection: There are three power supply methods of microUSB, external 15-30V DC, and built in lithium battery. The external power supply is equipped with anti reverse connection design. Product Accuracy: Display accuracy 0.01V. Operating accuracy of 0.01y. Voltage output maximum load current 20mA. Display: 4 digit digital tube display, high brightness, three display modes can be switched, voltage, percentage and Hz. Rotating encoder with 20 pulses, voltage and current adjustment switch button, indicator light, and battery indicator light. Scope of Application: Widely applicable to modern industry. Working Temperature: -10 - 60 ℃ Battery: 3.7V lithium battery, shipped without battery. Working Humidity: