Firefox665 years ago+1+10What is the difference between the 135.- Chf, the 172.26 Chf and the 186.- Chf model?Show in original language (German)sSolid.5 years ago • purchased this product-10-1purchased this product 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