Measuring time: 60+/-10 seconds in oral 100+/-20 seconds underarm(for reference only, it differs form people to people)
Beeper function, Fever alarm feature.
Battery 1.5V button battery (LR/SR-41).
Packing: plastic case, colored paper box, 10pcs/mid-box, 300pcs/ctn.
127 x 18 x 10mm;LCD: 15.5 x 5.5mm
Basal Thermometer: Monitoring your daily basal temperature can help you pinpoint the days of the month when you are most fertile and the days when you are infertile. This information is useful when you are trying to conceive and when you don't want to get pregnant. Although the process seems like a simple one, it takes dedication and commitment in order to establish a pattern so you can predict the days with some degree of accuracy.
Your body's temperature fluctuates throughout the month along with the changes in your hormones as you go through your cycle. Your temperature is low during your period and at its lowest right before you ovulate. As soon as you ovulate, your temperature rises and stays elevated until you start your period.
The changes in your temperature are slight so you need a thermometer designed for this. It is best to use a digital basal thermometer as it will give you readings to the tenth degree. The changes you will be tracking are most commonly in the 0.2 to 0.5 degree range but could be as much as a whole degree.
You also must take your temperature the first thing in the morning before you even get out of bed. If you go to the bathroom first or get a drink of water, it will throw off the results. Take your temperature at the same time and in the same way every morning and record your results on a basal temperature chart. You can get one of these from your doctor, a family planning clinic, or you can print one off the internet.
A basal temperature chart is on graph paper so you can quickly see when your temperature is trending down and when it is trending up. It is easy to get errors when taking your basal temperature though. To be the most accurate, you should leave the thermometer in place for at least five minutes. Stress, not sleeping well, and drinking alcohol can affect your readings too.
You can see why taking your basal temperature isn't as easy as it sounds. It is important to take note when your temperature rises or falls and signify on your chart if there was an unusual circumstance that might be to blame rather than ovulation being the cause.
To give you an idea if ovulation is expected yet in your cycle, you can subtract 14 from the length of your cycle and that will give you an estimation of your ovulation day and fertile period. This information will only help if your periods are regular. If they are the same length every month, you can input that data into an ovulation calculator and be handed your fertile days in return.
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