that is correct. Yet it does not say how to speciffically install.
STEP 1: acquire the oil pressure gauge with an oil pressure sender/sensor. Ensure that it is 1/8 bspt fitment or you will need 1/8 npt to 1/8 bspt adapter. which can be found at
http://www.hiprollc.com for $20 made of steel soo it wont brake on ya.
http://www.courteseyparts.com has one for less but it's made of brass from nismo and people have had bad reviews with those items breaking and spewing out your engine oil.
Step 2: Your gonna need 2 things Power(12vdc) & Ground. from an ign source like tap into your power from your stereo and find a good chasis ground.
Step 3: Find a place to mount the gauge connect the power and ground and the pressure gauge sender/sensor. BAM!!!!! your done. If you need pics i'd be happy to do a write up gentlemen.