The C1 is a small high security cylindrical portal with a 600 mm entrance. The portal is installed between the walls taking up less space in the secure area, making it a space efficient solution, ideal also for small-sized buildings. This secure door is available in class RC3 or RC4 EN1627 for resistance against breaks, ensuring a very high level of security and reliability. It is also available in many different versions (see the section “Available versions” here below).