
After much research I recently bought an Inkbird isv-300w and since before the purchase I didn't find much info about it, I thought I would share my experience.
As you can hear in the video, this machine makes a pretty loud summing noise, which could still be tolerable, but the ticking noise is absolutely unacceptable.
Maybe it was just my unit that was faulty, but I contacted the inkbird support sending them this video and they told me that this noise is normal and to be expected at high temperatures.
Luckily I was still in time to use the Amazon return policy, so I sent it back and with the refund I bought an Isv-200w: the difference is between night and day, the 200w is so silent, that sometimes I wonder if it's working or not and have to check by looking if the water is moving around.
Maybe I was just unlucky, but it's a pity that the 300W didn't work as expected, because its waterproofness was a nice plus, but for me hearing that ticking noise for hours was absolutely not an option.
by thelonioussss

3 Comments
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Is the 200w notably slower than the 300w in getting up to temp? I imagine it must be (although for sous vide I’m not really concerned with speed).
Have this exact model. No ticking sounds