If your research requires warm temperatures, controlled additive humidity (>60% RH), and little or no light – these chambers may meet your needs. With an operating temperature range of 18-50°C, ±1°C measured at the sensor, and two humidity source options to choose from, these chambers provide the perfect environment for a wide range of uses, including ninhydrin testing, drywall (gypsum) stability, cement curing stability, and product/packaging shelf life testing. Chamber conditions are monitored and displayed digitally on twin microprocessors. Air flows vertically up through the four levels of shelves, and interior lighting allows viewing or product identification through the glass doors. The rugged stainless steel cabinet rolls easily on casters.