<p> The Simzo HW-F7 thermometer uses a German-designed, patented infrared sensor to take temperatures without contact from 5 to 8 cm away. That means no cross-infection & it allows for distancing, making it perfect for the Covid-19 era. The digital display turns green, yellow, or red depending on the reading & is accompanied by a warning beeper. You can even store up to 10 readings in its on-board memory.</p>