The TERUMO Electronic Thermometer W525 is a high-precision model that measures in 20 seconds. TERUMO Electronic Basal Body Thermometer W525 WOMAN C - Brand: TERUMO - Model Name: W525 - Measurement Method: Electronic Thermometer - Included Items: Instruction manual - Measurement Time: 20 seconds - Color: Pink I think it's in relatively good condition. If you don't need the plastic outer box, I will sell the instruction manual and the main unit for 900 yen. Thank you for looking. Operation confirmed Alcohol disinfection Used only for a few days 2 years ago It was my first time using a basal body thermometer, but it was very convenient. Basal body thermometer Fertility treatment