No worries.
There are some complaints about humidity being off so maybe you can do a salt test on it and see if it's really off or not.
Also, I did have to put a piece of folded paper in the battery tray to keep it more secure so there's definitely some kinks to work out.
The reason I like hygrometers used for cigar humidors is because most electronic ones have adjustable humidity so in case you end up doing the salt test and humidity is off, you can make the necessary adjustments.