Track your fertility cycle with precision using the IS IndoSurgicals Basal Body Temperature Thermometer. Specifically designed for ovulation prediction, this mercury thermometer features ultra-fine 0.1°F graduations to detect the subtle temperature shift (typically 0.4-1.0°F) that occurs after ovulation. Its high-quality Jena glass construction and lens-front capillary tube ensure clear, accurate readings essential for effective Basal Body Temperature (BBT) charting, a key natural method for identifying fertile windows.

Ideal for women trying to conceive or monitor their menstrual cycle, this thermometer is suitable for oral (sublingual) or rectal use for consistency. The package includes helpful ovulation charts and instructions to guide users in creating accurate BBT charts. Trusted by gynecologists and fertility specialists, it provides the reliability needed for successful fertility awareness and family planning.

Features

• High-Precision 0.1°F Graduations: Features finely subdivided 0.1°F increments, essential for detecting the minimal basal body temperature rise (as small as 0.4°F) that indicates ovulation has occurred.
• Specialized Fertility Design: Engineered specifically for Basal Body Temperature tracking, with a narrow range (95°F to 100°F) focused on the typical BBT spectrum, providing enhanced readability for cycle charting.
• Clear Lens-Front Construction: Made with Jena normal glass and a magnifying lens-front capillary tube, allowing for easy, accurate reading of the fine mercury column without parallax error.
• Includes Ovulation Charting Kit: Comes with fertility charts and detailed instructions to help users consistently record and interpret their daily temperatures for effective ovulation prediction.
• Dual-Use Flexibility: Can be used orally (under the tongue) or rectally, allowing users to choose a consistent method that provides the most reliable baseline temperature for their individual tracking.

Specifications