It is as important to us as it is to you that we find the game we have pursued. We too have spent sleepless nights replaying the hunt in our mind and wondering what happened. Primos ® continues to use our resources to bring you the best in blood trailing technology. The Bloodhunter HD uses a custom optical filter that reduces select colors in order to amplify blood. It truly is the best light to use to find blood. Not every animal drop in its track. Have the right tool for the job. Make every drop count. Because at the end of every blood trail we want you to rest in peace.