Sper Scientific, 800027, Remote Large Display Relative Humidity/Temperature Monitor
Model 800027 - adds internal and external RH remote probe (54" long) displaying all four parameters simultaneously.
Includes 1 AAA battery
Simultaneously monitor both temperature and relative humidity (RH) on a large 3-3/16 x 2½" display. Useful in incubators, refrigerators, desiccators, environmental chambers, labs, clean rooms, stock rooms, warehouses, factories, greenhouses, and outdoors. Recall min/max temperature & relative humidity readings over any time period. ºC and ºF selectable, stand or wall mount.