以下是YB-40405手持式寬帶數(shù)字存儲示波器的產(chǎn)品中英文介紹：

YB-40405手持式寬帶數(shù)字存儲示波器是一款功能強(qiáng)大的電子測量儀器，具有垂直雙通道輸入，帶寬涵蓋200MHz、100MHz、60MHz、40MHz、25MHz，能夠滿足不同頻率信號的測量需求。其最高實(shí)時(shí)采樣速率達(dá)到200MSa/s，可精準(zhǔn)捕捉快速變化的信號。示波器配備5.7英寸LCD顯示屏，320×240點(diǎn)陣，背光可調(diào)，波形顯示清晰，便于觀察和分析。此外，它還具備多種實(shí)用功能，如波形參數(shù)自動(dòng)測量、波形運(yùn)算、自動(dòng)邊沿脈沖寬度外部視頻觸發(fā)方式，以及萬用表功能，可測量交直流電壓、電阻等。內(nèi)置鋰電池，可支持約4小時(shí)的使用，使其在移動(dòng)環(huán)境中也能穩(wěn)定工作，為現(xiàn)場測試和維修提供了極大的便利。

The YB-40405 Handheld Wideband Digital Storage Oscilloscope is a powerful electronic measuring instrument. It features dual-channel vertical input and bandwidth options of 200MHz, 100MHz, 60MHz, 40MHz, and 25MHz, which can meet the measurement requirements of signals at different frequencies. The oscilloscope has a maximum real-time sampling rate of 200MSa/s, enabling it to accurately capture rapidly changing signals. Equipped with a 5.7-inch LCD display with a resolution of 320×240 and adjustable backlight, the waveform display is clear and easy to observe and analyze. Moreover, it boasts a variety of practical functions, such as automatic waveform parameter measurement, waveform calculation, and automatic edge pulse width external video triggering, as well as a multimeter function that can measure AC and DC voltage, resistance, etc. The built-in lithium battery supports approximately 4 hours of use, making it stable for use in mobile environments and providing great convenience for on-site testing and maintenance.