Temp sender location - 250 I6 integrated head

[mikentosh]

Hi all, wondering if anybody has a photo of the coolant temp sender location on a 1977 250 I6 motor?

I noticed the other day that it appears I have two senders on this motor, wired in parallel. One is in the side of the head, and other is in the thermostat lowerhousing. The new ‘79 gauge I just put in looks to be showing the correct temp (needle is on halfway mark during regular driving). Never seen this before, am I missing something here?