1. 3 in1The FNIRSI2C23T has combined the functions of 2 channels oscilloscope, digital multimeter and signal generator. Handheld and easy to carry. An ideal multifunctional instrument for professionals, factories, schools, enthusiasts, or families 2. Oscilloscope Mode2 channel, 10MHz bandwidth, realtime sampling rate 50MSa/s, record depth 32kb, measurement voltage ±400V, automatic measurement, trigger function auto/normal/single, 200mv/div10v/div vertical sensitivity, waveform storage and export 3. Multimeter Mode4digit 10000 Counts. AC Voltage: 0750V, DC Voltage: 0999.9V, DC/AC Current: 09.999A, Resistance: 099.99MΩ, Capacitance: 099.99mF, Temperature: 55°C1300°C/672372℉, Diode, Continuity Measurement 4. Signal Generator ModeWaveform output frequency 2MHz and a step of 1Hz,outputs seven waveforms including sine, square, triangle, full, half, noise, and DC. The output frequency, amplitude, and duty cycle are adjustable 5. Battery FPGAMCUADC hardware architecture, builtin highvoltage protection module, 2.8inch 320240 resolution HD LCD display, builtin rechargeable battery 3000mAH, standby time 6H, TypeC, 5V/1A power adapter charging