Product Overview
This is a brand new CEM DT-321S 
certified digital Humidity and Temperature meter. DT-321S has fast response, high accuracy with dewpoint & wet bulb temperature measurement.
This device is a must have for storing your critical documents, optical equipments, antique and other valuables. It is also an ideal device for checking the perfect storing condition of your wine collections.
This device operates on a 9V battery and is very portable due to its light weight.
