Bought this for a trip to India and Bhutan with crazy weight limits on a handful of airlines.  Worked fine, though I think it overstated the weight by a pound or two on  a 40# bag.  Seems handy and light.  No batteries to worry about.  Did cause the baggage screeners to open the suitcase once (in maybe 12 flights) as it must resemble a timer of sorts on xray of bag.  ken