How and when do I test with the basal body thermometer?

We recommend taking your basal body temperature consistently each morning upon waking, without engaging in any activities beforehand to ensure accurate measurement. Also, use the BBT thermometer while lying on your side for better accuracy.

Is it necessary to test daily/consistently? And how does it read and understand your bbt shift to confirm ovulation?

If your basal temp is consistent every morning throughout the cycle, it will help you see the pattern of your fertile window. It confirms ovulation in your first cycle using BBT and aids in predicting future ovulation with the Premom App.

Can the thermometer work without syncing to the app?

The thermometer can store the most recent 60 temperature readings independently. When paired with the Premom app, it saves BBT temperatures in a cloud-based log.

What should I do if the thermometer cannot connect for Bluetooth auto-sync?

1) Ensure your app is open and within 10 feet of the thermometer. 2) Please make sure your Bluetooth function is activated on your phone before daily BBT testing if you want to sync your data automatically

How to replace the battery？

Remove the battery cover and replace it with a battery of the same battery type CR2032. Make sure the "+" sign faces up. Then replace the battery cover. Always dispose of used batteries according to local laws and regulations.

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Premom Bluetooth Basal Body Thermometer for Adults - Fertility Prediction

Premom Bluetooth Basal Body Thermometer for Adults - Fertility Prediction

Product ID: 599875255

Details

Age Range (Description)
Adult
Brand
Premom
Color
Purple
Connectivity Technology
Bluetooth
Display Type
Digital LCD
Included Components
1 Thermometer

💾60-Measurement Memory

📱Bluetooth Auto Sync

⏱️90s Fast Response

Description

🌡️ Own your cycle with precision and ease — never miss your fertility peak again!

PINPOINT ACCURACY - Measures temperature to 0.01°F (1/100th degree) for detecting subtle ovulation shifts.
SEAMLESS DATA SYNC - Bluetooth-enabled auto-sync with Premom App keeps your fertility data effortlessly organized.
HANDS FREE PRECISION - Long-tip design eliminates micro-movements for ultra-accurate basal temperature readings.
CRYSTAL CLEAR DISPLAY - Large backlit LCD ensures easy reading anytime—even in the middle of the night.
SMART FERTILITY INSIGHTS - Auto fertility charting in-app predicts your peak conception window with data-driven confidence.

The Premom Smart Basal Body Thermometer EBT-380 offers hands-free, ultra-precise basal temperature tracking with a unique long-tip design. Featuring Bluetooth connectivity, it auto-syncs up to 60 stored readings to the Premom App for seamless fertility charting. Its large backlit display and 90-second fast response make it user-friendly day or night. Designed for millennial professionals seeking reliable, data-driven ovulation insights, this thermometer empowers smarter family planning with clinical-grade accuracy.

Specifications

ASIN	B0CRHGKW6Q
Additional Features	60 Memory Recall, Auto Sync, Backlit Large Display, High Accuracy, Low Battery Indicator
Age Range (Description)	Adult
Age Range Description	Adult
Best Sellers Rank	#400,871 in Health & Household ( See Top 100 in Health & Household ) #24 in Basal Thermometers
Brand	Premom
Brand Name	Premom
Color	Purple
Connectivity Technology	Bluetooth
Customer Reviews	3.9 out of 5 stars 84 Reviews
Display Type	Digital Backlight LCD Display
Included Components	1 Thermometer 1 Quick Guide 1 Manual 1 Protective case
Indoor Outdoor Usage	Indoor
Item Length	9.8 inches
LowerTemperature Range	89.6 °F
Manufacturer	Easy@Home
Model	0810038636214
Model Name	0810038636214
Number of Batteries	1 Nonstandard Battery batteries required. (included)
Outer Material	Plastic
Part Number	EBT-380
Power Source	Battery Powered
Product Care Instructions	Wipe Clean
Resolution	0.01 ℉
Response Time	90 seconds
Reusability	Reusable
Special Feature	60 Memory Recall, Auto Sync, Backlit Large Display, High Accuracy, Low Battery Indicator
Specification Met	FCC
Style Name	Contemporary
UPC	810038637129 810038636214
Unit Count	1 Count
Upper Temperature Range	109.38 °F
Warranty Description	1 year warranty

Reviews

S**L

Makes BBT tracking so easy!

I’ve been using this for tracking my basal body temperature and really like it! It’s super easy to use and I love that it works with the Premom app so I can keep everything organized in one place. It’s also small and easy to keep right by my bed for testing first thing in the morning. Definitely recommend if you’re tracking your cycles!

21.07.2026

A**S

Great with app

Works well, connects to phone and all easily. Very clear display and accurate temp log

2.06.2026

H**R

Stopped working

I got this a little over a month and all of a sudden stopped working. So I bought batteries to go into it. However with new batteries it doesn't work. Now I can't even send it back because it was just over a month later. Now I don't have a expensive thermometer that works and can't return to get one that works. I've kept it in the case other than when using it. So that sucks. Also this thing had my temperature higher then any other one. So that was strange, but still it worked.

2.04.2024

B**R

So easy to use!

The first one I bought had a random defect but it was quickly replaced and I absolutely love it! So easy to use! Large display and easy to pair with app!

29.05.2026

V**Z

Cool but inaccurate thermometer

The thermometer is not accurate. Really cool concept, I like the flexible part and backlight. Pairs easily to your phone and the app. Does not read your BBT properly.

13.01.2026

M**.

Easy

Made it so much easier to consistently track BBT as I could just pop it in after my alarm went off and snooze a little longer lol

15.06.2026

A**R

App has to be open for the temp to sync

App has to be open and thermometer on for the temp to sync. Otherwise it works great and certainly convenient. Records previous temperature and you can go back to them.

17.04.2024

L**I

Like the idea but...

I like the idea of this thermometer. Like the light and that it can connect to my phone. My phone has to be unlocked for it to connect though. So if your screen is off or locked, it wont connect. I find the temperature for be inaccurate as well. I have just a basic Basal Thermometer and the two are completely different on temperatures. Ive been using the basic one for a couple of months now and find that cheap one to be pretty accurate where this one is not.

26.05.2026

G**A

Muita preciso e fácil de usar

17.08.2025

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