Opti-Logic InSight 400LH Range Finder height measurement system combines a pulsed laser rangefinder and a vertical angle sensor in a lightweight, easy-to-use package. The hand-held OptiLogic Laser Hypsometer Range-finder 400 LH is capable of measuring distances to non cooperative targets up to 400 yards away, depending on target size and reflectivity. Incorporating an internal electronic tilt sensor, this range finder from Opti-Logic makes vertical angle measurements with better than 1 degree resolution to remotely determine object heights. Applications of the OptiLogic 400LH Laser Rangefinder / Hypsometer include tree height measurements, construction, utilities, architectural measurements, landscaping, real estate appraisal, and much more. The Opti-Logic 400LH Laser Range Finder / Hypsometer is ideal for applications where surveying quality measurements are not required and higher instrument cost is not justifiable. The Opti-Logic Laser Range Finder & Hypsometer is designed for years of trouble-free operation and is proudly Made in the USA.