Coolant or Oil Temp Gauge Recommendation

A few of us have some cheepos that replace the oil cap. I got one for around $15. But you can't see the temp when riding. I use the OEM cap anyway, unless I want to check the temperature from time to time.

Happen to have a link?
 
Will this fit the older rockets with the smaller diameter dip stick or the newer ones with the larger diameter? Not sure what yeah it changed.