Is speedpuck the only electronics still class legal?

[scottydog]

After a few years with other boats I'm going to race my 3rd j/22. Did  speedpuck ever become class legal? Anything else besides tactik?

[TyeDyedGary]

  Speed Pucks are legal. To understand what is legal and not, go to Class Rules, C.5 Portable Equipment. Under C.5.2 Optional, explains what limits are on these devices.