The 1000XT laser rangefinder measures up to 1,000 yards on non-reflective targets and up to 1,500 yards on highly reflective targets, and has an angle compensation feature that allows marksmen to determine the horizontal distance to a target even if it is located above or below their position. In the angle compensated mode, the 1000XT from Opti-Logic Corp. simultaneously measures line-of-sight distance and vertical angle and automatically determines and displays the effective horizontal range of uphill and downhill trajectories. A high-speed microprocessor allows the user to select units of measure in feet, yards or meters. The 1000XT can be switched between the normal, line-of-sight ranging mode and angle compensated mode with one-button operation. It also has a minimum measuring distance of 4 yards, automatic rain mode to avoid false readings off highly reflective rain drops at any distance and Red-Dot aiming for precise targeting.