From Fairhaven Health, this Digital Basal Thermometer provides readings with accuracy within 1/10th of a degree. Up to four times faster than a glass basal thermometer and safer, too.

This basal thermometer features a beeper to indicate peak temperature reading, large, easy to read digital display, memory recall of last reading and is waterproof.

Includes a clear storage case, replaceable 15V battery and a free ovulation chart. One of the most accurate digital basal thermometers available!