OSCILLOSCOPE TYPE: DIGITAL; NUMBER OF CHANNELS: 4; VOLTAGE: VIA USB; FREQUENCY: 200 MHZ; SENSITIVITY: 5 MV AT 50 V/DIV; RESOLUTION: 8 BITS; INPUT IMPEDANCE: 1 MEGOHM; RISE TIME: 1 GS/S; MEMORY SYSTEM: NON-VOLATILE (USB FLASH DRIVE) 2.5K POINTS; ACCESSORIES: MANUAL / REFERENCE GUIDE / AC ADAPTER / CURRENT PROBE TEK PROBE A621; MANUFACTURER / REFERENCE TEKTRONIX: DPO-2024. SEND GUARANTEE CERTIFICATE AND MANUAL OF OPERATION.