TDK white thermometer HT-301, with instruction manual, allows for accurate temperature measurement. - Brand: TDK - Model Name: HT-301 - Included Items: Instruction manual - Color: White Thank you for viewing. Data can be transferred to an app. I've been blessed with children, and I originally suffered from severe PMS, so I had a Mirena inserted. I don't think I'll be taking my temperature anymore, so I'm selling it. I purchased it about three years ago, and used it for 0-1 months. There is no box, but I have the instruction manual, so I will send it in a cushioned envelope. It has been wiped and disinfected, but please understand that it is a used item. I was just going to throw it away if I kept it, so I've priced it low. If you'd like to try it out, please do.