When I received the meter, I was a bit conservative with how many times a day I would take readings since it has a limited 300 readings. The readings ranged significantly , more than expected, so I started taking back to back readings with HUGE variations. I reported this to andatech and they explained the unit isnt designed for back to back readings. Surprised !! So which one is right ? The first one or the second one? And even these were sometimes lower,higher, or higher , lower. The unit then stopped turning on. Again, support went through manytroubleshooting steps, none of which were efective. Week 3 now, I'm demanding a refund or replacement, yet they still fight the fight, and don't want to replace this faulty unit (even though a video was sent to them).
My vote: DO NOT BUY. Look for some other product, or a different company.