Instruct: Classify Amazon reviews into positive or negative sentiment
Query: more than 70 seconds

i tried every way to use it on my self & on 2 of my kids.it gives very wide rangs of readings & time. one thing for sure, IT DID NOT TAKE 6 SECONDS, NOT EVEN FOR ONCE.one of the times i used a stop watch & it went over 70 seconds before it finally beeped.i tried all the areas shown in the user guide, non of them worked