In Tokyo's Akihabara electronics district, a Geiger counter sold under the brand name of Shanghai Ergonomics Detecting Instrument Co.'s DP802i costs ¥65,000.
For that price, twice the cost in China, it comes without a box, warranty or return policy.
Shanghai Ergonomics doesn't know how its device got onto the shelves at Akihabara as the company doesn't sell its Geiger counters directly overseas and offers a one-year warranty for models sold in China, Chairman Li Jinglei said.