The ELH Series of precision humidity chambers has NIST traceable accuracies in humidity, temperature and dewpoint. The ELH Series incorporates programmable controllers for constant, precision parameter control and uniformity plus integrated DewMaster chilled mirror hygrometers for accurate temperature and humidity measurements. These highly accurate temperature and humidity control chambers are very similar in performance to two-pressure method devices but they reach soak conditions more rapidly and are significantly more affordable. The ELH series offers three standard chamber sizes: 1.5cu.ft., 6cu.ft. and 10cu.ft. Larger volume chambers are available on request.