Smart Basal Thermometer - We provide you with lifetime technical support via the Femometer app to ensure your issues are resolved. For any questions, ask us through our app for assistance. Discreet Design for Women - Designed like a lipstick so your little secret in seeking a baby or planning natural contraception won't easily be noticed. The alarm is soft, and the volume is adjustable, so you don't have to worry about waking up the "sleeping beauty" next to you. Precision and Fast Measurement - Accuracy up to 0.01°C (0.09°F) to capture even the slightest BBT fluctuations. Measurement takes only 30 seconds. Easy to Use - No buttons or switches, just an LCD screen for reading measurements. Simply slide the cover up or down to turn the thermometer on or off. Take the first minute of your morning before getting out of bed for accurate measurements. Automate Data Recording and BBT Chart - Your BBT measurements are automatically transmitted to the app via Bluetooth. The app generates a BBT chart and analyzes it to identify your fertile window and ovulation. No manual work required, suitable for oral temperature measurement only!.