Note : Basal thermometers are different from regular fever thermometers and used only by WOMEN to note basal body temperature that occurs with ovulation.

NET Basal Mercury Thermometer is an accurate device to chart basal body temperature of women to predict their fertile period or ovulation (three days). Basal thermometer, thus, helps women determine when they ovulate and thereby dramatically increase chances of conceiving and falling pregnant. By this way they can plan either to conceive or take precaution.

A woman is susceptible to conceive during 3 days of ovulation and NET Basal Mercury Thermometer can indicate these days.

With ovulation body temperature increases due to increase in hormone progesterone and by precise recording of your body's resting temperature first thing in the morning and at the same time each morning, you can know when ovulation takes place in your cycle.

Made from high quality capillary tubing with lens front in Jena normal glass.

Suitable for oral (sub-lingual) and rectal use.