Digital thermometer or hygrometer is a device that used to measure temperature or humidity. Digital thermometers have been widely used in industries and homes for food preparation, manufacturing, medical and scientific testing, and procedural applications. Liquid thermometers are the most common image associated with thermometers, but digital versions are becoming more common. This is due to accuracy, security and ease of use. The electronic thermometer is battery-powered and does not need to be recharged from the main source. However, not all batteries can be replaced, but some digital thermometers cannot. Digital thermometers usually show the number to one decimal place, which is more accurate than liquid thermometers. A full range of thermometers and hygrometers for spot check or continuous monitoring, accurate temperature and humidity measuring.