Exceptional Customer Support & Product Service

Reliable service and high-quality parts to keep your cycle trackers performing at their best.

Daysy 1.0 to 2.0 Upgrade Exchange fee Replacement sensor for Lady-Comp Replacement protective cap Daysy 2.0 Replacement micro-USB cable Replacement TRRS cable Upgrade to the newest Lady-Comp

Here you'll find the complete range of genuine OEM accessories for the entire Daysy product family – Daysy, Lady-Comp and Teena. From replacement cables to sensor caps, everything you need to keep your fertility tracker running reliably for the long term.

Why Choose Genuine OEM Accessories? Daysy, Lady-Comp and Teena are certified medical devices. Their precision – up to 0.05°C (0.09°F) measurement accuracy – requires all components to work perfectly together. Genuine Daysy accessories are developed and tested specifically for each model. They ensure your device continues to measure as accurately on day one thousand as it did on day one.

Sensor Cap – Everyday Protection for Your Sensor The sensor cap is the most important accessory for your Daysy. It protects the highly sensitive temperature sensor from dust, moisture and physical damage. Make sure to select the correct version for your device – the sensor cap for Daysy 1.0 and the sensor cap for Daysy 2.0 are sold separately.

Micro-USB Cable – Reliable Charging The replacement Micro-USB cable charges your Daysy 2.0 safely and efficiently. Perfect as a backup or for a second location like your office or travel bag.

TRRS Cable – Connect to the DaysyDay App The TRRS cable connects your Daysy 1.0 to your smartphone and the free DaysyDay App. Through this connection you transfer your daily temperature readings, view your BBT curve and log additional observations like cervical mucus or cycle symptoms.

Sensor Replacement and Additional Services If your Daysy's sensor needs servicing or replacement, the corresponding service fee is also available here in the accessories section. No need to buy a new device – genuine Daysy service keeps your tracker performing at full accuracy.

All accessories are one-time purchases with no subscription and no recurring fees. Just like Daysy itself: buy once, use for years.