The Fnirsi 2C53T is a portable 3-in-1 device that combines the functions of an oscilloscope, multimeter and signal generator. With a bandwidth of 50 MHz and a sampling rate of 250 MSa/s, it offers precise measurements and analyses. The device is equipped with an 8-bit ADC and has a 16 kB memory buffer per channel, which supports both pre- and post-triggering. The integrated 50 kHz signal generator enables the generation of different waveforms, while the multimeter can perform measurements up to 19999. The robust ABS housing with silicone covers ensures durability, and the 2.8-inch colour screen with a resolution of 320×240 px ensures a clear display of the measured values. With a 3000 mAh battery, the device offers an operating time of up to 4 hours, making it ideal for use in various environments. The CAT II 300 V certification and integrated overvoltage protection increase safety during use.