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A Japanese tech company on Thursday launched a device that allows people to self-test their sweaty exteriors for three categories of smell, the media reported.

The pocket-sized detector called Kunkun Body which looks like a tape recorder, connects by bluetooth to a smartphone app that divulges the potentially ominous results in a suitably discreet manner, reports the Guardian.

Konica Minolta, the firm previously best known for producing cameras and printers, believes there is a market for the odour checker in Japan because people are "particularly sensitive to smell".