Top critical review
30 of 34 people found this helpful
Great computer if not for one terrible flaw
on June 3, 2013
As far as cycle computers go, the sigma 1009 gets the job done. It has the features that most people would need. There is one very unfortunate flaw though: If it starts raining, it's only a matter of time before it stops working. If it rains heavily, you can count on it to break down in a matter of minutes. The display goes blank and you have to take out the battery and dry the sigma over night at least. We have three of these units in the family, and the problem is the same with all of them. In addition, two friends of mine also experience this issue. So, unless you only intend on using it in clear weather, I can in no way recommend this product.