美国采购需求：240/360

I'm reaching out regarding an issue I'm facing with the device I purchased. While I can successfully display the temperature on the LCD, it only shows "88" for every reading, which is not helpful at all. I'm trying to get the device to display the actual temperature values, but it seems stuck on this one number. I'd appreciate any guidance on how to resolve this problem. Is there a setting I might have missed, or is it possible that there's a malfunction with the unit? Your prompt assistance in troubleshooting this issue would be greatly appreciated, as it's affecting the usability of the product. Thanks for your help!