The DualScan Ultra Digital Ear Forehead Thermometer facilitates the temperature-taking process with its built-in mini LED flashlight so you won"t disturb your sleeping patients. The optional voice readout is a godsend for those with impaired vision. And for advanced diagnostics, the Data-and-Time module stores the date and time of the last 20 readings for comparison, while the large bright display also shows room temperature, calendar and clock.