The CS1201 is a fiber isolated Current Digitizer. It is linked to the CS548 with an QSFP Active Optical Cable. It can be used in a safety cage. It has 200 MHz bandwidth, a 14 bit ADC, 23mA rms noise and is used with the CS1501 soldered in 1 mOhm current shunt. It has two ranges - +/- 63A and +/- 630A. It has a CMRR > 140 dB at 50 MHz. It is battery powered, with 7 hour life. Two sets of batteries and a charger are provided. It can also be used in Medium Voltage applications up to 30kV, or higher after consultation. Cable length is 1-30 m. Other sensor resistances are coming.