Beurer OT 20 Ovulation Thermometer is a digital basal thermometer designed for natural family planning (NFP) and cycle tracking. It measures basal temperature with high accuracy, displaying readings to two decimal places. Compatible with the Ovy app, it helps predict fertile and non-fertile days by transferring temperature data for more reliable cycle tracking. The thermometer can be used for oral or vaginal measurements and features a flexible measuring tip. It has a waterproof design, an automatic switch-off function, and memory storage for the last measurement. With an acoustic signal indicating completion, it is easy to use and can be disinfected for hygiene. The Beurer OT 20 is a medical device, offering precise readings with a measurement accuracy of ±0.05°C. The Ovy app can be freely downloaded to assist with cycle and family planning.