Breathalyser: four out of 10 satisfactory
If you've had one too many, your own breathalyser could save you a heap of trouble if you check whether you are fit to drive. The trouble is, only four of ten tested by Touring Club Suisse (TCS) got a satisfactory rating. Four were even "unsatisfactory" in its December 2017 report.
The top-rated ACE AFM-5 (CHF99) was more than three times cheaper than the second-placed Dräger 3820 (CHF329.95). Another ACE, the II+, placed third (CHF189).