Concealed mechanical coordinator with one electromechanical hold-open device for double leaf doors. Guide rail is certified in compliance with EN1155 and EN 1158, size 3-6. Fulfils barrier-free building requirements (EA / CEN TR 15894). Suitable for fire and smoke protection double leave doors, hinge distance 1350-2500 mm. DIBt approval with different smoke detection systems. Possible to keep both door leaves open by using only one electromechanical hold-open device. Hold-open angle adjustable between 70° - 120°. Continuously adjustable holding force. Large range of applications.