Current Signal Generator 0‑20mA 1 Channel Digital Display Signal Generator for Testing Item Type: Current Signal Generator Sampling Channel: 1 analog output channel that can output 0-20mA, 4-20mA, 0-22mA signals. Channel Features: High reliability and accuracy for stable output signals. Power Supply Protection: 15-28V DC power supply with anti reverse connection design. Product Accuracy: 0.01mA adjustment accuracy and 0.01mA display accuracy of 0.01mA, can be calibrated to the full scale value of the controlled equipment. Interface: 4 digit digital tube with high brightness, can switch among actual current, percentage and Hz. Adjustment: Has 3 durable touch buttons to adjust output values and set parameters. Application Range: -10~60℃ working temperature, with working humidity less than 80%.