An important condition for achieving a precise measurement with a laser distance metre is a perfect reflecting target. Constructed for use in open spaces, or increasing accuracy on low reflective surfaces over 50metres. The Leica DISTO ™ A4 target plates are constructed of Highly reflective material with 2 surfaces. The darker surface for measurements over 50 metres and the other for distances over 50 metres. Leica Geosystems offers target plates which can be used to measure long distances or which can be fixed at corners, edges or over floor marks. Leica A4 Target Plates are designed to give you that perfect measurement at distances from 50 meters away, truly excellent for those hard to get areas.