with an after market water temp gage, do you have to get the company's sender too? for all of them? i've seen some that say it's required, other just offer it so i'm not sure. i asked this specifically about the cyberdyne digital gage but no one seems to know and their phone number doesn't work

 

i found cyberdyne's new phone number, they got a new area code, and the gage i ordered does come with a sender. check out www.thomasregister.com if you need information on a company, that's where i got their number