MY WIFE IS FULL CHEMOTHERAPY I NEEDED AN ACCURATE THERMOMETER AND EASY TO USE. EC THERMOMETRE EASY TO USE .but NOT AT ALL BE RELIABLE .Yes POSTER BUT TEMPERATURES SYSTEMATICALLY FALSE REPORT BY AN THERMOMETER CURRENT .Make COMPARING YOURSELF! RECTAL IN CONTINUOUS AT LEAST 2 TO 3 tenths DEGREE (SAY WHAT IS ACCEPTABLE IN RELATION TO THE temperature "ear") THEN SOMETIMES WITHOUT REASON FALLS ON 3 TO 6 tenths. (WITH NEW BATTERIES!) IMAGINE: THIS POSTER THERMOMETER 37 ° 6 AS THE REAL TEMPERATURE OF 38 ° 3 NEED EMERGENCY AND ANALYSIS OF BLOOD .... NOT VERY DISAPPOINTED AND NOT RELIABLE