Laser Measuring Tool for analysing glazed units, precision-made plastic housing, laser diode with sophisticated measuring electronics, non-hazardous laser class 2/3a, press the button for instant measurements, precise measurements from only one side (independent of light), measures glass thickness as well as air gaps of any multi-glazed unit, indicates PVB and resin layers of laminated units, battery-operated, little energy consumption, for coated glass, bullet-proof glass, multi-layered insulating glass, etc.