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Right now I am using mTm (code: \unit{10}{\milli\tesla\meter}). I wanted the output to look like mT-m. The SIunits package documents talks about half-high dot but doesn't mention any hyphen. Any ideas?

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With the siunitx package you can easily do \sisetup{inter-unit-product = {-}}. – Qrrbrbirlbel Sep 17 '12 at 22:44
Is the hyphen allowed by SI rules? – egreg Sep 17 '12 at 22:49
Good point. Just that I have seen really good textbooks in engineering include the hyphen in their units. Right now I am using \usk. – Shashank Sawant Sep 18 '12 at 1:20
up vote 5 down vote accepted

I wouldn't write it like that.

\DeclareSIUnit\mt{\milli\tesla} %% A method for say short cut or new unit!
\sisetup{inter-unit-product = {-}}


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