Ideal for babies and adults, the digital ear thermometer provides accurate and rapid temperature readings from the ear over the range of 34.0 to 42.2°C. The ear thermometer measures the infrared heat created by the eardrum and surrounding tissues, converting this temperature into an oral equivalent. The unit incorporates a memory recall function - last nine readings. Each digital ear thermometer is supplied with 20 replaceable probe covers that help to avoid cross-contamination. The ear thermometer is powered by a CR2032 lithium coin cell battery (supplied).