With a fast one-second response, provides forehead or surface or temperature at the push of a button. Temperature alert or silent. Memory recalls 25 readings. 1 year limited warranty.Measurement Range - Forehead mode - 93.2 to 108F/34 to 42.2C;Surface mode - -7.6 to +176F/-22 to +80CFor measurement of human body temperature in people of all agesResponse Time - Forehead mode - 1 second; Surface mode - 0.6 secondForehead Measurement Distance - within 1.5 in/4 cmSurface mode - Distance - Spot = 1 - 1, emissivity - 0.95Accuracy - Forehead mode - 95 to 107.6F/35 to 42C - 0.4F/0.2C, otherwise 0.5F/0.3C; Surface mode - 71.6 to 108F/22 to 42.2C - 0.5F/0.3C, otherwise 4% or 4F/2C whichever is greaterBacklit in blueMemory recalls 25 readingsOne-button operationBattery status indicationWater Resilience - IP22 - protected from solids bigger than 12.5 mm (e.g. fingers); dripping water when enclosure tilted up to 15Temperature alert or silentOn/Off Power buttonAuto-off after 1 minuteABS plasticDispl