This digital infrared medical ear thermometer has a response time as fast as 1 second. It has a 4-digit LCD for easier temperature reading. It also has a built in 10-set memory capacity and a fast scanning feature. It runs on 3V Lithium CR2032 battery making the digital infrared medical ear thermometer weigh only 49g. Its overall dimension measures at 18mm x 131mm x 32 mm.