FNIRSI 2 In 1 Small Handheld Fluorescence Digital Dual-Channel Oscilloscope, US Plug 1. Sampling rate: 500msps 2. Input coupling: DCAC 3. Rise time: 2.5 nss 4. Storage depth: 120kpts 5. Input impedance: 1MQ-18PF 6. Screen size: 2.8 inches 7. Resolution: 320x240 8. Expansion interface: USB transmission interface 9. Battery: 3000mAh 10. Size: 135mmx90mmx40mm 11. The machine can be set to English, Chinese, Russian, Portuguese 12. 180mhz bandwidth and 500msps real-time sampling rate 13. Grayscale and color temperature display Multi-level grayscale display capability, waveform changes are clearly reflected 14. 50000WFMSS waveform refresh rate makes abnormal waveforms nowhere to hide 15. Three trigger modes: automatic, single, normal; rising edge, falling edge 16. Adaptive adjustable trigger suppression, adaptive to high frequency, low frequency and noise signals, making the waveform clean and stable 17. Provide additional magnification time basis, which can provide 2~1000 times magnification viewing effect in running or paused state. 18. Supports digital phosphor technology, the closed curve graph generated by dual channels can be used to compare the amplitude, frequency and phase of the two sets of signals 19. The analog front-end adopts excellent shielding measures and a stable feedback system. All parts with interference sources are kept away from the analog front-end. 20. The analog front end has a built-in switchable 20MHz hardware bandwidth limiting component. When turned on, the -3DB attenuation bandwidth is 20MHz. 21. Cut off part or all of the various signals measured by the oscilloscope as the output signal of the signal generator, and store up to 500 customized signals 22. The design of the analog front-end input stage adopts a high-voltage withstand design. The overall design can reach 400V withstand voltage, which can prevent burnout at any gear. 23. Built-in 3000mah large-capacity rechargeable lithium battery, battery life up to 4 hours, scheduled shutdown for 5 minutes