Compliance is non-negotiable in lab equipment. Ensure the incubators meet CE, ISO 9001, and ISO 13485 standards. Key technical features should include CFC-free refrigeration systems (using R134a refrigerant) to meet environmental regulations and independent over-temperature protection to prevent sample loss. For international markets, confirm the power supply is compatible with local grids (e.g., 110V/60Hz or 220V/50Hz) and that the unit includes an RS485 interface for data logging and GLP compliance.