Certificated Pro System/WKM4, 6 D Class

If you are looking for a high-security product from a recognized manufacturer, this is the right category. Very high-class attested door cylinder Gerda PRO System, meets the highest requirements of the standard 1303:2015-07.The number of possible key combinations declared by the manufacturer is an incredible 2,700,000, the key of the highest according to the standard 6 class - a minimum of 100.000 combinations, confirmed by the Certificate of the Institute of Precision Mechanics of 2020, the highest resistance to burglary class D and the highest resistance to corrosion and temperature class C - that is, the product can be successfully used outdoors in wickets and gates, additionally distinguished by the possibility of using this product in fire doors - class B fire resistance, the whole is completed by the highest prescribed by the standard durability class 6, that is, 100,000 cycles. It is really difficult to expect more from a door cylinder. The product of a well-known manufacturer, very good quality at an affordable price considering the enormity of the advantages. Very good security for any door.