






From the brand


Wondfo is one of the earliest high-tech biological companies focusing on rapid diagnostics and is consistently investing in R & D, regarding innovation as the soul of the enterprise’s development.
We have been committed to safeguarding health and improving lives with better products, services, and solutions since 1992.
Prepare for Pregnancy

Detect Pregnancy 6 Days Sooner
Than you missed period

Pinpoint 2 Most Fertile Days
and find the best time for conceiving!

Longer Testing Time for Higher Precision – Engineered for fertility and ovulation monitoring, this BBT thermometer uses a longer stabilization period to deliver ultra-accurate results. Keeping it in place for about 2 minutes (oral/rectal) or 5 minutes (underarm) allows the sensor to fully settle, helping you detect subtle temperature shifts in your cycle.
Clinical-Grade Accuracy with High-Precision Sensor – Provides 0.01°F accuracy, comparable to professional laboratory equipment, ensuring consistent and reliable basal temperature tracking for your fertility routine.
Easy °C/°F Switching – Switch between Celsius and Fahrenheit by turning off the device and holding the power button for 2 seconds, making daily operation fast and user-friendly.
Clear LCD Display with One-Button Operation – Features a large, easy-to-read LCD screen and a simple one-button design for an effortless and intuitive BBT-tracking experience.
Multi-Mode Measurement for Personalized Comfort – Supports oral, rectal, and underarm measurements, allowing you to choose your preferred method and maintain consistency for more reliable tracking.
Hygienic Waterproof Tip & Long Battery Life – The waterproof probe is easy to clean with alcohol wipes or disinfectant, and the device offers 200+ hours of use (about 1 year at 3 uses/day) for dependable long-term performance.
Memory Recall for Convenient Tracking – Automatically stores your last measured temperature, making it easy to review changes and follow your daily basal temperature trend.
Important: Longer Test Time Is Normal for Ovulation Tracking – Fertility thermometers naturally require a longer measurement period because ovulation-related temperature shifts are extremely subtle. A reading time of about 2–5 minutes is completely normal and ensures the accuracy needed for reliable ovulation prediction.
8 reviews for Wondfo Digital Basal Thermometer for Women Fertility – BBT Thermometer for Ovulation & Pregnancy Tracking – High Accuracy & LCD Display & Waterproof
Add a review
$6.55
Alyson Herring –
User Friendly & Reliable
Extremely easy to use & read.
Dustin –
Temp reader
Does not have an app.
Randi Slizewski –
Slowwwwwww
First of all it is SO SLOW! 2-3 minutes before it beeps. There’s no back light so unless you have a lamp or a clap light you’ll be shining your phone light on it to see. And I don’t even know if it’s accurate once it takes that long to read. My temps aren’t doing anything significant, should have rose at ovulation so either I didn’t ovulate or it’s not accurate. I’m buying a different thermometer today to see.
Jenna D –
Great product for a great price!
I was skeptical given the price but it works fantastic! The temperature is accurate and it’s easy to use.
Courtney –
For cycle tracking.
I got this thermometer so my teenager canearn about her cycle, and how to track it. It’s just right for that purpose. Super easy for her to use. It wasn’t too expensive. Seems to be about as sturdy as you would expect for the price point, and we are happy with it.
Megan Guidry –
Slow, accurate
Works well, down to 2 decimal points. It feels like it takes atleast two minutes to read
Aleesha S –
Multiple uses.
Got this to better temp myself in pregnancy, and will also be great to get a more exact temp which I’d like to do for other reasons later on.
Jeimi Argueta –
Lo recomiendo
Lo amo! Es tan exacto y preciso