FNIRSI 2C53T 3-in-1 portable oscilloscope multimeter signal generatorFNIRSI 2C53T 3 in 1 portable oscilloscope multimeter signal generator The FNIRSI 2C53T combines the functions of a 250 MHz 250 MSa s oscilloscope with an 8 bit ADC and a 16 kpoint memory buffer per channel (pre post trigger), a multimeter up to 19999, and a 50 kHz signal generator. The input impedance is 1 M 15 pF with AC DC GND switching. A durable ABS housing with silicone overlays, a 2. 8 inch 320240 px screen, and a 3000 mAh battery (up to 4 hours