Hello,
If the ITC-308-WIFI connection is disconnected, please make sure you are using the latest version of the INKBIRD app. Perhaps you can refer to the slow flash mode steps in this post to reconnect the device?
If the reading of the ITC-308-WIFI is very off, please clean it with a clean damp cloth and blow it dry with a hair dryer. After drying, please test it in the air to see if its reading will improve?
If its reading deviation is within the range of -15F~15F, it can be calibrated through the calibration function.
If its reading deviation is still beyond this range, please provide the order information and the link to this post to the email support@inkbird.com.
Since forum posts are public, these may involve private information, please do not reply here.
Thanks.