Oscilloscope buyers understand how tricky triggering may be. Using the wrong settings may lead to unstable waveform captures, and from time to time, even the wrong measurement info.  + B?n c?p nh?t th? công k?t qu? v? h? th?ng c?a mình: (nh?p n?i dung tr? tin nh?n sms, nh?p v&ag