“Methanol poisoning is a problem that affects thousands of people every year, killing 20-40% of victims…

Yet current methods for detecting the presence of methanol remain complex and expensive, and unsuitable for travellers.

University of Adelaide researchers have developed a wireless methanol sensor – roughly a centimetre squared – capable of reliably detecting methanol at concentrations as low as 50 parts per billion (below the level of poisoning) in vapour from alcoholic drinks or on someone’s breath.”

From The Guardian.