Four zones monitor module for control up to 20 conventional detectors and/or 10 push buttons or as NA signal input. Differentiate display button and detector, differentiate power cut or short circuit, occupies four directions in the alarm loop, requires 24VDC power supply. Maximum consumption: 300mA. Includes LED status indicator. IP55. Dimensions: 190x140x70mm.Certification: CE and CPR (EN54 part 18)