{"product_id":"gras-42acpistonphone-high-pressure-class-1","title":"GRAS 42AC Pistonphone, high pressure, Class 1","description":"The 42AC is an extremely stable laboratory standard sound source which can also be used for field calibrations – it retains its high accuracy even under hostile environmental conditions. The 42AC complies with all the requirements of IEC Standard 942 (1988) Sound Calibrators Class 1 when corrected with barometer ZC0003K (included). The 42AC is delivered with a ½\" coupler (RA0048) for calibrating ½\" microphones directly. The 42AC-S2 is a version of the 42AC that is delivered with a 1\" coupler (RA0023) for calibrating 1\" microphones directly.","brand":"GRAS","offers":[{"title":"Default Title","offer_id":48310155215181,"sku":"42AC","price":0.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/9344\/9805\/files\/42AC_HiRes-RGB.png?v=1701173221","url":"https:\/\/gomeasure.dk\/en-se\/products\/gras-42acpistonphone-high-pressure-class-1","provider":"GOmeasure.dk","version":"1.0","type":"link"}