Simply put, with the high-performing Impact 850 and its economical price tag, you don't have an excuse to head afield without a laser rangefinder. The Impact 850 accurately ranges reflective targets to 850 yards, providing critical distance readings hunters and shooters can rely on. You can accurately range targets down to 10 yards when things get up close and personal. 6x magnification brings subjects in for a closer look and more accurate ranging. Fully multi-coated optics enhance light transmission for optimal performance in low-light settings. The Impact 850 provides angle-compensated HCD (Horizontal Component Distance) and LOS (Line of Sight) readings to match user preference and can be set to read in yards or metres. The black LCD display boldly stands off against subjects during the moment of truth – and a fast readout ensures you get the range in time to capitalize on the opportunity. The unit runs on a single, long-lasting, easy-to-find, CR2 battery.