Pin Thickness Gauge (PTG) Thickness Gauge - PTG Pin thickness gauge Hand held thickness gauge. To be used for measuring the thickness according to insulation material standards. Specifications PTG 1000PTG 20PTG 250PTG 50 Plate pressure1000 Pa20 Pa250 Pa50 Pa Max thickness to be measured140 mm280 mm280 mm280 mm Standards EN 823Thermal insulating products for building applications - Determination of thickness See also: PTG Manual