ActivSync RangeFinder Technology 

ActivSync™ display technology fluidly morphs from black readouts against bright backgrounds to red readouts against dark ones, with infinitely variable tones. No more lost readings on game in deep cover. No more washed-out numbers on those super-bright cloudless days. No more guessing about whether you’re seeing a 600 or an 800 or ranging a buck or a tree. This is what best-in-class rangefinding was destined to be.