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Reviewed in Mexico on February 18, 2024
El producto me parece muy bueno pero los vídeos en la página de la empresa tardan mucho en cargar, es casi imposible poder ver uno completo.
Chuck E Doodles
Reviewed in the United States on December 14, 2024
I bought the TO1254D from another site. Firmware is the latest, 2024-11-05 on the mfgr's website.The show-stopper is this:The scope continues sampling after acquiring the necessary post-trigger samples, overwriting the triggering event in the cyclic buffer in memory. It does this when STOPped in single mode or TD'd in normal mode with no more triggering events.Consequently, the waveform in memory is from well after the triggering event.Sometimes it displays the expected waveform, sometimes it doesn't. If it does, all you can do is save the image. If you try to zoom or move it switches to the waveform in memory. Sometimes entering and exiting various menus causes it to display the expected waveform, but the waveform data - whatever happened around the triggering event - is long gone.The attached images show the situation. The scope was in single trigger mode connected to a function generator that was off. When it was turned on, the scope STOPped (as it should), showing nothing but sine (wrong). I turned the AFG off and re-armed the single trigger (WAIT), and voila, it showed the change from nada to sine. But it's only an image. Saving the waveform shows it to be all sine (or worse, oddly distorted sine).As a bonus, I've somehow I've gotten it into a state where it can't write to internal memory. I've deleted every file from the File Manager but I can't save anything to internal memory - no saved settings, no reference waveforms, images, etc.Other thoughts:The DMM is only 4000 count and low accuracy.Battery life is two hours at most with 4 18650 cells.The AFG is pretty good for what it is.The form factor is nice.As it currently stands, this is an expensive piece of junk.
Edumar Merchan
Reviewed in the United States on October 6, 2023
Easy to use, friendly, a great work tool.
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