CoolMaster Pro is an advanced AC integration gateway designed for medium to large commercial VRF/VRV air conditioning installations and Building Management Systems. It provides comprehensive control, monitoring, diagnostics and integration capabilities for large HVAC systems. Key Features: Supports up to 255 connected indoor or sensor units. Designed for medium to large commercial buildings. Ideal for Building Management System integration. Compatible with major VRF/VRV HVAC brands including Daikin, Mitsubishi Electric, Mitsubishi Heavy, LG, Samsung, Panasonic, Toshiba, Hitachi, Gree, Fujitsu, Haier, Midea and more. Supports BACnet, Modbus, RS232, RS485 and Ethernet communication. Full control and monitoring of HVAC indoor units. Colour LCD touch screen for local control and system management. Multi-brand simultaneous support. Configurable GPIO for external control signals such as fire alarm “All On” or “All Off”. Remote access from smartphone, tablet and PC. Cloud integration capability. Optional HVAC diagnostics. Optional direct KNX interface via extension board.