Description: 【Functional Design】: This 4-20mA signal generator operates as a passive two-wire system, functioning effectively when connected in series within a circuit. It supports both forward and reversing connections. 【Versatile Compatibility】: The current loop generator is designed to work seamlessly with three wires and four-wire systems, offering high compatibility for various applications. 【High Precision】: Equipped with an LCD display, the signal generator provides high accuracy readings, ensuring reliable performance and data transmission. 【Compact Size】: With product dimensions of 79.5mmx42.2mm, this compact device can be easily installed in tight space without compromising its functionality. 【Adjustable Resistance】: The signal generator functions equivalently to an adjustable resistor connected in series within the circuit, providing flexibility and adaptability in different operational settings.   Size Chart: 79.5mmx42.2mm/3.13inchx1.66inch Package Includes: 1x Signal Generator