Features • Accurate Calibration Options: Enjoy readings with current and voltage display calibration potentiometers, allowing you to adjust values for optimal performance • High-Quality Components: Built with premium chips that ensure exceptional signal stability and reliability, providing consistent outputs for your projects • Versatile Applications: for various uses, including signal generation, valve adjustment, variable frequency control, and PLC debugging, making it ideal for profionals and hobbyists alike • User-Friendly Design: Compact and easy to operate, this signal generator features a knob adjustment that minimizes accidental changes, enhancing your work efficiency • Multiple Display Methods: Choose from 3 clear display options—actual current, percentage, or Hz—making it simple to monitor and optimize your work proces Features: 1、DISPLAY CALIBRATION: There are current and voltage display calibration potentiometers on the back of the module. If the display is not accurate, you can calibrate the current voltage display value yourself. 2、PREMIUM CHIPS: Excellent chips are used for signal stability, high reliability, and stable normal . 3、WIDELY USED: Our signal adapter can be used as a signal generator, valve adjustment, variable frequency control, PLC debugging, panel debugging, LED testing, and analog transmitter output. 4、EASY TO USE: Comes with a compact size, the signal generator is easy to use. And the knob adjustment allows easy , not easy to accidentally touch. 5、DISPLAY METHODS: 2 wire signal generator has 3 display methods, actual current, percentage, Hz. Easy to read and improve work efficiency! Specification: Item Type: Signal Generator Material: ABS Product Overview: 4-20mA signal generator, button adjustment, not easy to accidentally touch Power Supply Voltage: 15v-30v Output Range: 4-20mA, 3-21MA Display Method: Actual current, percentage, Hz Sampling Resistance: L than 500 Ω Output Accuracy: ± 0.5% Display Accuracy: 0.01 Package List: 1 x Signal Generator 1 x Manual Package List 1 x Signal Generator 1 x Manual