Model E200 pocket humidity/temperature meter has a fixed probe and comes with a "thumb wheel" for easy one-hand operation of its various menus and functions.  Single point calibration of humidity and temperature. Runs on one 9-volt battery.
Gives highly accurate readings of:

 - Temperature
 - Humidity
 - Maximums
 - Minimums
 - Averages
 - Dewpoint
 - Absolute humidity

Specifications:
Temperature (NTC):
  Range: -4 to 122°F (-20 to 50°C)
  Accuracy: ±0.4°C (0 to 40°C) otherwise ±0.7°C
  Resolution: 0.1°C