Built-in antimicrobial protection with Microban® inhibits the growth of damaging bacteria.Large 17 mm digit size for easy reading of display.Luminous fluorescent display is brighter than LCD in low light.Built-in antimicrobial protection with Microban® inhibits the growth of damaging bacteria. Large 17 mm digit size for easy reading of display. Luminous fluorescent display is brighter than LCD in low light.