Huanghua Faithful Instrument Co.,Ltd Characteristics' • Unique internal wind circulation structure design, breeze circulate fan make inner chamber temperature uniformity. • large LCD display, multiple data display at the same time, 30-stage program control, round move , ladder operating, with function of loop self-diagnose and sensor fault alarm. • Intelligent PID temperature control system, high precise temperature control PT100 sensor equipped, high precise and stability import humidity sensor component to control humidity automatically. # Double door structure, with high quality stalinite to observe samples, outer door with magnetic strip, convenient to on and off, good sealing. • Intelligent defrosting function ensure device long-time run without frost.standard mechanical independent temperature limiter provide double protection. • Inner humidifying system with small particles, good humidity uniformity, low water consumption and function of alarm when is short of water.