The TH109 thermometer features an LCD display, auto data hold, laser pointer. Less than 1 second reading time. The typanic thermometer Compact, ergonomic design, Dual Scale (Celsius or Fahrenheit), Large LCD display for easy reading, Fever alarm, Low power consumption, Conforms to ASTM accuracy standards. The Merlin TH809 is supplied complete with hygienic protective probe covers. The rapid temp is dual display, reliable accurate temperature measurements within seconds (measuring range: 34 to 43?C.) Features a convenient angled head. The thermoscan measures temperature by measuring the heat generated by the ear drum. 8 memory functions with lithium batteries supplied. Flexible thermometer tip for added gentleness. Temp range: 34ºC to 42.2ºC. Ambient range: 10ºC to 40ºC.