Citizen Thermometer CTEB502 It functions, but the tens digit sometimes appears as a normal 3 and sometimes as a 7. It started appearing as a 7, and I used it for several days. Although it seemed to measure temperature without issue, when I turned it on again to list it for sale, it went back to displaying a 3, so it seems to change. Therefore, I am listing it as a defective item. It was only used at home, so it looks relatively clean, but please understand that it is a defective item before purchasing. Thank you very much. m(_ _)m ✩Please be sure to read my self-introduction before purchasing (*u_u) I am also listing this on other sites, so I may suddenly remove the listing. Please understand. Also, if it sells elsewhere first, I may have to cancel the sale. Please understand.