Pretty useless
I tried hard to make use of this monitor but its results are pretty random. I sat out in the sun a few times with the sunfriend, my Oregon Scientific UV888 laid out on a table beside me and also used the UV data from my Davis Weather station. The Sunfriend seems to report the UV index fairly accurately but the accumulated exposure results are totally random. I set my skin type as 9 and sometimes it shows 4 leds and other times all 11 leds for the same amount of acculated exposure by the UV888 and Davis and my skin which pretty much agree. The other issue is the sunfriend has no audible alarm. So not sure what they were thinking when they did the programming for this thing but its pretty useless in its current form. The UV sensor is SO directional that its even more totally useless if you wore it on your wrist. Total waste of money and does not work as promised.. Its a shame because if it worked as promised and had added an audable alarm it could have been a good thing. This is just a &#34;feel good&#34; novilty item with no practical value. For heavens sakes don't rely on it or you could turn into a lobster! Looks to me many of the reviews here are not real and put up to get some sales.
Rating: 2 stars