Intended use: DSC, FBII, SCANTRONIC,ROKONET, PARADOX, NAPCO, SATEL, CADDX NETWORX, GALAXY, VISONIC, PYRONIX, ELKRON, ADEMCO, PIMA, SUMMIT. External dimensions of the enclosure: W=250, H=162, D=61 [+/- 2mm]. External dimensions of the flange: W1=276, H1=193 [+/-2 mm]. Tamper protection: tamper – opening of the enclosure. Notes: flush mounted enclosure, locking - lock assembly.