The handling is complicated. Without manual goes first because nothing. The measurement accuracy is barely tolerable. She moved in test measurements in 0,2 - 0,5 degrees range, regardless of whether forehead or ear. It is nice, of course, the rapid measurement and voice output of the measured temperature. As drawers thermometer for measuring the uncommon cold fever clearly oversized, but whoever measure disease- or situational often fever must have a powerful tool at hand with this device.