Summary

The 2024 version of the FarmTek timer pole is open-ended. There are two disadvantages to this: (1) the Electronics are exposed to weather and dirt, and (2) the batteries are easily dislodged.

This end cap fits tightly (friction held in place) sealing the end. A bar built into the cap adjacent to the 9V battery should make it difficult for the battery to dislodge. Since it is so tight fitting, you probably want to print it at a high level of detail. Print time is a little over an hour on my printer.