• Measurement of glass from 2 to 25 mm thick and air space up to 24 mm. • Works by reflection on the glass. • Material: durable plastic. • Lightweight, small, very practical and reliable. • Sliding meter to determine the total thickness. • Contact surface with a 45° angle with baseline and scale. • Position the contact surface on the glass flat (45°) with the measuring scale oriented towards the glass. • The thickness of the glass can be read at the point where the weakest reflection of the scale coincides with the printed scale.