CLINICAL HIGH ACCURACY (± 0.05 ℃ / ± 0.09 ℉ ): Measures Basal Body Temperature (BBT) to 1/100th of a degree precision (e.g. 97.41 F) in Celsius or Fahrenheit. Measurement takes about 90 seconds, longer time than regular oral thermometer as it reads more precision. LARGE BLUE SCREEN WITH BACKLIT: easy to read in the dark.. Buy Digital Basal Thermometer, High-Precision Oral Thermometer with Backlit & LCD, 1/100th Degree and Memory Recall Thermometer with APP(iOS & Android) for Nature Family Planning and Fever, Purple online at best price at Desertcart. FREE Delivery Across Oman. FREE Returns -. "/>Digital basal thermometer 1100th degree high precision