Digital Basal Thermometer For Fertility Charting

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The Digital Basal Thermometer allows a woman to determine her body temperature for basal body temperature (BBT) charting purposes. Designed specifically for fertility charting and predicting ovulation, it provides results to 1/100th of a degree Fahrenheit. Because consistency and accuracy are critical, the thermometer also offers helpful charting functions, such as digital memory recall and a peak temperature indicator.

Key Features:

  • Digital display reads to 1/100th of a degree Fahrenheit (e.g. 97.56)
  • Certified accuracy to 1/10th of a degree
  • Peak-temperature indicator sound
  • Large, easy-to-read digital display
  • Digital memory recall function for most recent reading
  • Includes a replaceable battery, clear storage case and an ovulation chart.

More Info:

What is Basal Body Temperature?

Basal Body Temperature (BBT) is the lowest temperature attained by the body during rest period or sleep. It is measured immediately after waking up and before any physical activity has been done.

How does tracking Basal Body Temperature help to conceive?

When women ovulate, there is an increase of one-half to one degree Fahrenheit (or one-quarter to one-half degree Celsius) in BBT. Daily monitoring of BBT can be used to estimate the day of ovulation. Using a basal thermometer and the attached chart one can track when the best time is to try to conceive (ttc).

Fertility Chart

To print out a fertility chart, click on one of the links below:

Ovulation Chart (Fahrenheit)

Ovulation Chart (Celsius) 

Related Blogs you may be interested in:

Blog: 5 Signs You're Fertile Now! >

Blog: How Do I Know I'm Ovulating?>

Check out our Ovulation Calculator >>>

Product is sent in discreet packaging direct from Ireland 

Product Reviews

6 Reviews

  • 5
    I love this

    Posted by Mary on 8th Dec 2017

    This thermometer is very useful and it works fine. I got no problems with it.

  • 5
    Good, a bit slow

    Posted by Kara on 14th Jun 2017

    I have no complaints for this thermometer, except that it can be a little slow. It does however seem to be accurate so the slowness doesn't detract from the quality.

  • 5
    It works just fine

    Posted by Farah on 27th May 2016

    I've had this thermometer for close to two years, using it almost everyday for about a year and a half and the battery STILL isn't dead! The only thing I wish it had was a backlight, but it will let you pull up the last temp taken if you hold down the button. Which is very useful if you just want to take your temperature and fall back asleep.

  • 5
    Does the job

    Posted by Nancy on 6th Apr 2016

    Does exactly what it's supposed to do. Takes my temperature. Haven't had a problem with it let. I only wish it had a little light maybe so I wouldn't have to turn on the lights in order to see the numbers. Otherwise no complaints! I can't really test to see how accurate it is, but I think it is.

  • 5
    Works Great

    Posted by Sharon on 3rd Dec 2015

    Hi My husband & I have been ttcing for the past year in a half and I wanted to find out exactly when I ovulate. I have been using this product for weeks and it works perfectly. For anyone who is trying to tempt for ovulation this product is perfect. I am a youtube Vlogger & I have recommended this product for anyone is is ttcing. Hoping for a BFP this cycle!

  • 5

    Posted by Fiona on 21st Apr 2015

    This digital basal thermometer is great for tracking your BBT. The thermometer gives accurate results and comes in a nice hard plastic case for travelling. Only downfall is that it does take about 2 minutes to read your temperature, and two minutes early in the morning feels like an eternity!

Shipping and Returns


  • Delivery Cost €4.99 (Per Order) - Ireland
  • Discreet Packaging
  • SMS and Email Alerts
  • Order before 2pm for same day dispatch
  • 98% of all orders are delivered next day

Your order will leave our warehouse in Bray, Co Wicklow and be delivered the next working day. You will receive SMS & email tracking updates from An Post and someone will need to sign for the parcel on delivery.