[1 second] This thermometer is backed by clinical studies and recommended. We provide 3 Ultra Sensitive sensors and the latest smart chip with the optimized algorithm to deliver reliable readings within 1 second. It is actually more convenient than an oral/rectal thermometer. [A must-have thermometer for family and public places] The digital thermometer is designed for all ages, adults, infants, and elders. It not only supports forehead function but is able to take room/object temperature (do not contact liquid directly). ? and ? are easily switchable. [LCD screen display in dark] Without wake up the baby, one-second fast measurement instant readying and mute mode, you can read temperature clearly even in the dark. Equipped with a fever warning system, the thermometer for fever will indicate temperature status with corresponding lights and beeps. Specifications Power supply DC1.5V2 Measurement range: Forehead: 89.6?-109.2?(32.0?-42.9?) Object 32?-212?(0?-100?) Accuracy (Laboratory) : Forehead moe 0.2?/0.4? Object modo 1.0?/1.8? Display resolution: 0.1?/? Measuring distance: 1-3cm Automatic shutdown: 101s Mermory: 35 groups of measured temperature. Operational conditions Temperature: 10?-40?(50?-104?)/ Humidity: 15-95%RH,non-condensing Atmospheric pressure: 86-106kPa Battery: 2*AAA, can be used for more than 3000times Weight Dimension: 66.8g(without battery),3642153.5mm On Mar-16-21 at 17:00:26 PDT, seller added the following information: