I bought it back on 10/02/2018 the display was messed up and the segments were missing so you can't read the number easily, almost never you will don't look very closely when filling in the digit with the missing information from the bad segments on the display. (see attached photos). This together a few weeks ago it was too late to do an Amazon refund. I figured no problem, I saw it had a 1 year warranty but nowhere in the book or in the box is there any contact information to request service. Maybe the seller will read this and decide to do something to fix my bad sensor problem.