# BBT Thermometers When [[Tracking Your Basal Body Temperature|tracking your basal body temperature]] you need to use a BBT thermometer that measures to 2 decimal places (Eg 37.36℃). As with anything, there will be lots of options including features such as a backlight or the ability to sync with your phone. Although some features can be helpful, they are not essential. That being said, I recommend one with a memory recall as it means you don’t need to record straight away or remember what the measurement was. Some BBT thermometers available: [Ana Wiz Basal Body Thermometer Ovulation Test Thermometer (Celsius) + Case + BBT Fertility Chart](https://www.amazon.co.uk/Ana-Wiz-Thermometer-Ovulation-Fertility/dp/B07CHWR9BY/ref=sr_1_8?keywords=bbt+thermometer&qid=1660568625&sprefix=bbt+ther%2Caps%2C75&sr=8-8) [Digital Basal Thermometer for Ovulation with Backlight LCD Display, Premom APP, 1/100th Degree High Precision and Memory Recall, Ovulation Tracking, Charting &Natural Family Planning, Purple](https://www.amazon.co.uk/Thermometer-Ovulation-Backlight-Precision-Tracking/dp/B0842Q3W7T/ref=sr_1_1_sspa?keywords=bbt+thermometer&qid=1660568625&sprefix=bbt+ther%2Caps%2C75&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExTTk0VlpURU9aNkU3JmVuY3J5cHRlZElkPUExMDE3MzAxMUdLSEc2TkNGQlRNSyZlbmNyeXB0ZWRBZElkPUEwNDYwOTA3MTBXVTVGOFZWNlY1MCZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=) [Femometer Basal Thermometer for Ovulation, Intelligent BBT Thermometer with Backlit LED Screen, Fertility Monitor Period Tracker, Sync with Femometer APP (Available for Android and iOS)](https://www.amazon.co.uk/Thermometer-Ovulation-Intelligent-Fertility-Femometer/dp/B07S3VG2LH/ref=sr_1_7?keywords=bbt+thermometer&qid=1660568625&sprefix=bbt+ther%2Caps%2C75&sr=8-7)