Simultaneously monitors both temperature and
humidity on an extra large 3-3/16 x 2-1/2" dual display which can
be read from across a room. For labs, chemical storage areas, clean
rooms, stock rooms, warehouses, factories, greenhouses, and outdoors.
Monitor desiccators, incubators, refrigerators, and fume hoods. Recall
min/max temperature and min/max humidity readings over any time period
or have it automatically reset itself every 24 hours. Stand or wall
mount. Comes with 1 AAA battery which lasts a full year.