3.2.1 Install battery
1. Unscrew the end cap of signal pen turning it counterclockwise.
2. Remove the battery cover by pushing the cover back away from the pen tip.
3. Insert 1 AAA battery with the plus (+) side up.
4. Put the battery cover back and screw the cap back on clockwise.
3.2.2 Replace pen tip
The electronic pens have a removable tip, which can be replaced it is worn out. To
replace the pen tip:
1. Pull out the existing tip with your fingers or tweezers.
2. Insert the replacement tip and push into place fully.
