Basal thermometer
A basal thermometer is a thermometer that is used to determine the basal temperature . Different contraceptive methods used in natural family planning , such as the temperature method or the symptothermal method , require the body to measure the body's basal temperature in the menstrual cycle . If you want to have children, you can also measure your basal temperature to determine the fertile days around the time of ovulation .
Basal thermometers work in a similar way to clinical thermometers , but measure a narrower temperature range with greater accuracy. While the measuring accuracy of the clinical thermometer is 0.1 ° C, the temperature of the basal thermometer can usually be measured with an accuracy of 0.05 ° C; In addition, the measuring range is limited to temperatures between approx. 36 ° C and 38 ° C. With the classic expansion thermometer with mercury or Galinstan , this is achieved by expanding the scale. Digital basal thermometers have also been available for a number of years.