The LRM series rangefinders are built around an ultra compact optical system with 7x magnification. The User-friendly interface and high quality optics allow the operator to take readings with only one hand. The step up LRM 1500 rangefinder increases the range to 1500 meters and can be upgraded to the LRM 1800S model that features speed measurement capability. The top of the line LRM 3500CI has a range of 3500 meters and includes all of the features today’s military and law enforcement professionals require. This includes computer output, a compass, an inclinometer and speed measurement.