1、GENERATE VOLTAGE AND CONTROL CURRENT: This generator can use 4‑20mA to generate voltage and control the current in the circuit 2、HIGH ACCURACY WITH LCD: Accuracy up to 0.01, come with LCD display, support rotary encoder adjustment, two terminals non polarity 3、SETTABLE OUTPUT RANGE: The output range can be set, 4‑20mA(device control) or to 21mA (signal debugging) 4、CONVENIENT CHECK: The display mode can be set for easy viewing of values, provide great convenience for your work 5、CALIBRATED OUTPUT: Linear output can be calibrated, actual output can be consistent with customer equipment display 1 x Current Signal Generator1 x User Manual Item Type: Current Signal GeneratorSupply Voltage: 15-30VOutput Range: 4-20MADisplay Mode: Actual current, percentage, HzSampling Resistance: Less than 500ΩOutput Accuracy: ± 0.5%Display Accuracy: 0.01Hole Opening Size: Approx. 77 x 40mm / 3.03 x 1.57in