Chapter 1. Getting Started
Model PM880 Portable Hygrometer User’s Manual 9
1.4.1 Selecting Probe Type (cont.)
4. At Type, press [ENTER] to open the drop-down list of probe types.
Note: If you do not know the probe type, refer to the Calibration Data 
Sheet.
5. Use the arrow keys to scroll to the desired selection and press [ENTER].
6. Press [F3] (OK) to exit.
Next, do one of the following:
• If you are using an M or TF Series probe, proceed to Entering 
Calibration Data on the next page.
• If you are using an MIS or an MISP2 Probe, proceed to Displaying 
Measurements on page 15.
Note: If you have an MIS probe that was sent back to the factory for 
calibration without the electronics module, you need to enter 
calibration data as described in Entering Calibration Data on 
page 10.