Size:150x95x44mm(LxWxH)Resolution:��0.1��/��0.1�HMeasuring range:Body mode:32-42.9��(89.6~109.2�H)surface mode:0~100��(32-212�H)Three color backlight (color alarm):32~37.5��(89.6~99.5�H):Green backlight (Normal)，37.6~38.0��(Alarm point) (99.7�H-100.4�H):yellow backlight( slight fever)，38.1-42.9��(100.6�H-109.2�H):Red backlight (High fever)，Note: Three-color backlight is only for body mode， Always Green backlight for surface mode.Measuring time:0.5 secondsAuto shut off:5 secondsOperating conditions:5��-40.0��(41�H-104.0�H)，Rh��85%Battery:2 x 1.5V AAA battery (battery not included)