Nah JuriD, all the cloak detectors are the same in the standard game.  You even forgot the third tech available to non-racial players -- gravitic sensors.  All the same.  
One sensor per system of level 1  penetrates the cloak provided by stealth armor.  Higher levels are needed to beat the level 2 and 3 cloaking device.  
I was playing P&N recently, and I forgot that second part -- ships were attacking from out of nowhere.  Had to get those sats with gravitic sensors up quickly.  Even then, if I was up against a human, it might not have worked.  
