Chapter 1. Getting Started
8 Model PM880 Portable Hygrometer User’s Manual
1.4.1 Selecting Probe Type
Use the steps below to select the probe type for the measurement site. Refer 
to Figure 9 on page 19 for a menu map.
Note: You may also enter a constant value (rather than a live input) for 
moisture, temperature or pressure measurement. For more 
information refer to Entering Constants and User Functions on 
page 54.
1. If the menu is not active, press [MENU].
2. Use the arrow key to scroll to Program and press [ENTER].
3. Use the arrow key to scroll to Probe and press [ENTER]. The screen 
appears similar to Figure 3.
 
Figure 3: Probe Window