Sure! There are a few options:
- Buy an extender from any electronics store; just be sure the plug fits exactly (2.5mm mono)
- You can splice in a little more "stranded wire" using very light gauge wire and wire nuts. 24 gauge wire is probably fine for just 3 feet, or you can use a heavier gauge wire for longer extensions.
We do void the warranty on the sensor cable that you cut, but we don't void the warranty on the CoolBot. If you ruin one, head to our replacement store to purchase a new sensor.