Since 1991 ELFON has been designing and manufacturing doorphone facilities and especially DOORPHONE SETS for customers who want to purchase a doorphone system without bothering about configuration of particular elements.Our products have changed a lot over the years, starting from manufacturing technology, promoting modern construction solutions and highly qualified staff who make thousands of satisfied customers appreciate the quality of our products.We would like every ELFON product to help its users in their every day life and work. We also want all those who co-operate with us to be satisfied and successful.We care about our customers and therefore we have introduced ISO 9001 quality management system. According to the system every products which leaves our plant is fully tested in extreme work conditions which helps us to eliminate any defects.Our products fulfill EU standards (the CE sign RoHS) and safety standards, which has been confirmed by Polish Centre of Research and Certification.