Hello @Daniel B, welcome to the Trackunit Community.
For an excavator bucket, installing a Kin along the ear plates is an excellent location. The Kin uses Bluetooth for connectivity, as such: Avoiding signal-blocking locations such as mounting beneath or inside metal. Kins are rated IP69K which means they have the highest level of dust and water resistance. They are also UV resistant, and designed to work on heavy-duty and off-road vehicles.
This is a link to our Help Center article on Kin Installation.
https://helpcenter.trackunit.com/s/article/How-do-I-install-Trackunit-Kin?language=en_US
Thanks for reaching out!
Dustin