Audible alert when Danger level is detected

Real time and alarm time

Quick response and resume

Auto power off; Low battery indicator

Easy to use; Simply blow into the vacuum vent and you will get the results in seconds

No need to recalibrate; Reusable many many times.

Clean， your mouth will not need to touch the tester

Digital clock can display real time and temperature; you can also use it to set up alarm and count down timer