Even in fixed range it is too slow. Contininuity testing must be instant to be usefull otherwise you start to doubt the pins make contact.
Well why, buy it as a $800 continuity tester? you most likely have other tools in your toolbox that can do your continuity testing.
But for those interested in the instrument then check the price here
http://www.alibaba.com/product-detail/WENS-540-Multifunction-Scope_141610513.html and
http://www.wens.co.kr there may be other places too where they stay under the $800 mark.