Firefox664 years ago+110What is the difference between the 135.- Chf, the 172.26 Chf and the 186.- Chf model?Show in original language (German)sSolid.4 years ago-101 Helpful answerThe only difference I see is the Graphical and Programming feature. So with the 175.- you can program. Personal I'm completely fine with the 135.- versionComment