Oil PSI light, H20 temp light?

ok so who makes a sending unit that trips/opens at 3/7 PSI?

and 220 degrees is ok for H20 temp?
**** what is to hot, i get worried around 210....

Everybody. Pick one. What is it? 1/8" NPT, right? I don't know who DOESNT make one. lol

http://www.oreillyauto.com/site/c/d...920_2279&keyword=oil+pressure+sensor!s!switch