This service-friendly capacitive humidity measurement system has features like 32Bit multicolor panel controller, a single hand operated lockable door with RS232 interface for data transfer. It works on low-power and complies with CE/EMC regulations. It is built form stainless steel for use of environmentally friendly materials and refrigerants. It has an entry port of ø 50 mm and displays error as text message. Its simple user-friendly operation and programming with optimized parameters is suited for highest testing precision. It works at a minimum noise level and is ideal for high temperature change rate. Additionally contains demineralized water system with water-level gauge.