Purchased this shield at the beginning of snowmobile season this year. Installation was quick and easy. It was a perfect fit on my helmet. Towards the end of the season, I was riding along and the cord fell out of the shield. With out stopping, i was able to insert it back in easily. Not even a mile down the road, it fell out again, after stopping and inspecting the shied, I found out that female connector in the shield had fallen out at some point. That day I called Dennis Kirk, they told me to send it in, 3 days later, a new replacement was sitting at my door step waiting for me.
Replaced the original shield with this one in less than 15 seconds. Fit was exact and the shield heated quickly. I actually had to choose a lower electric setting on the toggle (not included) b/c the radiant heat from the lens was causing me to sweat. Outstanding product.
I have switch from a regular shield to this electric one and would never go back. I'm living in the Canadian Arctic Circle and experience temperature as extreme as -50C. So far I tried in the -25 / -30C and didn't experience any problem with it. No fog. There only down side is that you can feel a little bit of air coming in your helmet from the top of the shield but with a ballaclava, I wasn't cold. I liked it so much that I had to by one for my wife too. Good investment.
Works great! Lens stays crystal clear while riding, no fog, no frozen shield, just visibility. If you don't mind radiant heat on your face, or opening the visor one notch to get cool air in also, then just hook it up to your grips high setting, if your face is sensitive, or you do a lot of day riding, you may want to get a control box for it.
This shield does not fog, I used it in below 0 F temps and a few times there was a thin faint line in the middle of the shield, but not very often. You can cough and there is no fog. I think the price is a little high, but the safety it brings is worth it. I do not feel any heat on my face, and it is plugged into the socket only, full power, no controller. It installed easily and fits perfect. Cord is plenty long.
Used it for the first time in the 2011 Blizzard---Worked great!!!!! Does not seal as well as the original shield that came with the helmet new but worked well. A little more wind noise but being able to see-well worth it. No more foggy shield==ride faster!!