Gaffrig depth guage?

[flyboy]

I would like to know how to set and re-set my Gaffrig depth guage. Stock on my 05 20ci.

There is now info in the owners manual...Surpirse? And a web search revealed a dead site for them.

Anyone have a manual they could share with me?

Model 5501 in white. No "SET" button?

TIA, Paul