The HMSR 20-SMS from LEM is a Current Transducer with AC Input Current -50 to 50 A, Output Current 0.02 to 0.026 A, Output Voltage +/- 0.8 V, Supply Voltage 4.5 to 5.5 V, Accuracy 0.015. Tags: PCB Mount, AC Current Transducer, DC Current Transducer. More details for HMSR 20-SMS can be seen below.